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Class Number: 84 Class Title: MUSIC Subclass Subclass Number Title 1 INSTRUMENTS 600 .ELECTRICAL MUSICAL TONE GENERATION 601 ..Data storage 602 ...Digital memory circuit (e.g., RAM, ROM, etc.) 603 ....Sampling (e.g., with A/D conversion) 604 ....Waveform memory 605 .....Read out at different rates 606 .....Read out at fixed rate 607 .....Recursive algorithm 608 ....Fourier coefficient memory 609 ....Note sequence 610 .....Accompaniment 611 ......Rhythm 612 .......Tempo control 613 ......Chords 614 ......Reiteration 615 ....Selecting circuits 616 .....Fundamental tone detection or extraction 617 .....Multiplexing or scanning 618 .....Priority or preference circuits 619 .....Transposition 620 .....Stops 621 ....Noise reduction (e.g., error prevention) 622 ....Tone synthesis or timbre control 623 .....Time varying or dynamic fourier components 624 .....Modulation 625 .....Mixing 626 ....Expression or special effects (e.g., force or velocity responsive, etc.) 627 .....Envelope shaping (i.e., attack, decay, sustain, or release) 628 .....Portamento or glissando 629 .....Vibrato or tremolo 630 .....Reverberation 631 .....Chorus, ensemble, or celeste 632 .....Chiff or percussive transients 633 .....Loudness control 634 ....Accompaniment 635 .....Rhythm 636 ......Tempo control 637 .....Chords 638 .....Arpeggio 639 ...Photoelectric 640 ....Variable speed 641 ...Magnetic 642 ....Tape 643 ...Capacitive 644 ...Constructional details 645 ...MIDI (musical instrument digital interface) 646 ..Fret control 647 ..Digital combinational circuit 648 ...With frequency multiplication or divisionn 649 ...Note sequence 650 ....Accompaniment (e.g., chords, etc.) 651 .....Rhythm 652 ......Tempo control 653 ...Selecting circuits 654 ....Fundamental tone detection or extraction 655 ....Multiplexing or scanning 656 ....Priority or preference circuits 657 ....Transposition 658 ....Force or velcoity responsive 659 ...Tone synthesis or timbre control 660 ....Mixing 661 ....Filtering 662 ...Expression or special effects 663 ....Envelope shaping (i.e., attack, decay, sustain, or release) 664 ....Chorus, ensemble, or celeste 665 ....Loudness control 666 ...Accompaniment 667 ....Rhythm 668 .....Tempo control 669 ....Chords 670 ...Constructional details 671 ..Electric analog oscillators 672 ...Variable frequency 673 ....With Variable filtering 674 ....With space discharging means 675 ...With frequency multiplication or division 676 ....With transistor 677 ....With space discharging means 678 ...Selecting circuits 679 ....With transistor 680 ....With space discharging means 681 ....Fundamental tone detection or extraction 682 ....Multiplexing or scanning 683 ....Noise reduction (e.g., error prevention) 684 ....Priority or preference circuits 685 ....Transposition 686 ....Stops 687 ....Force or velocity responsive 688 .....With magnetic selector 689 .....With capacitive selector 690 .....With variable resistance selector 691 ...Noise reduction (e.g., error prevention) 692 ...Tone synthesis or timbre control 693 ....Time varying or dynamic fourier components 694 ....Modulation 695 .....Amplitude 696 .....Angle (i.e., frequency or phase) 697 ....Mixing 698 .....Partials (i.e., harmonics) 699 ....Filtering 700 .....Variable 701 ...Expression or special effects 702 ....Envelope shaping (e.g., attack, decay, sustain, or release) 703 .....Attack and decay 704 ....Portamento or glissando 705 ....Tremolo 706 ....Vibratoo 707 ....Reverberation 708 ....Chorus, ensemble, or celeste 709 ....Trill 710 ....Chiff or percussive transients 711 ....Loudness control 712 ...Accompaniment 713 ....Rhythm 714 .....Tempo control 715 ....Chords 716 ....Arpeggio 717 ....Reiteration 718 ...Constructional details 719 ....Keyboard 720 ....Keyswitch structure 721 ....Foot control 722 ...Fret control 723 ..Transducers 724 ...Photoelectric 725 ...Electromagnetic 726 ....String 727 .....With adjustable means 728 .....Noise reduction (e.g., error prevention) 729 ....Reed 730 ...Piezoelectric 731 ....String 732 ....Reed 733 ...Capacitive 734 ...Strain gauge 735 ...Tone synthesis or timbre control 736 ....Filtering 737 ...Expression or special effects 738 ....Envelope shaping (e.g., attack, decay, sustain, or release, etc.) 739 ....Tremolo 740 ....Vibrato 741 ....Loudness control 742 ...Selecting circuits 743 ...Constructional details 744 ....Keyboard 745 ....Keyswitch structure 746 ....Foot control .Automatic 2 ..Combined 3 ..Electric 4 ...With phonograph 5 ....Electrical connections 6 ...Pneumatic 7 ..Stringed 8 ...With picking devices 9 ....Electric 10 ...With bowing devices 11 ....Electric 12 ...With striking devices 13 ...Pianos 14 ....Without keys 15 .....Half width 16 ....Constant power 17 .....Electric controll 18 ......Key actuators 19 ....Electric power 20 .....Key actuators 21 ......With expression 22 .......By voltage change 23 .....With expression 24 ....Pneumatic type 25 .....Key actuators 26 .....Grands 27 ......Connections to piano action 28 .....Action above keyboard 29 .....Action below keyboard 30 .....Location of parts 31 .....With double tracker 32 ......Double length 33 .....Expression mechanism 34 ......Parts of piano moved 35 .......Rest rail shifted 36 ........Normally in short stroke position 37 ........Position controlled from reservoir 38 ........Graduated shift 39 ......Wind pressure varied 40 .......By pumping 41 .......By throttling 42 .......By regulating chamber 43 .......By use of two pressures 44 ......Two cooperating pneumatics to each note 45 ......Two opposing pneumatics to each note 46 ......Transmission varied 47 ......Systematic variations 48 ......Pneumatic details 49 ......Hand controllers 50 .....Pneumatic construction 51 ......Both primaries and secondaries 52 .......Lower leaf moved 53 ......Lower leaf moved 54 ......Striker pneumatics in wind chest 55 ......Units 56 .......Metal 57 ......Tubes and junctions 58 ......Bleeds 59 .......With valve 60 ......Valves and seats 61 .......Inside 62 .......Outside 63 ........Adjustable 64 ......Screening and cleaning 65 .....Power pneumatics 66 ......Connections to hammers 67 .......To key 68 .......To abstract 69 .......To wippen 70 .....Wind-supply devices 71 ......In grands 72 ......Pedals 73 .......Folding 74 .......With keylock 75 .......With doorss 76 ........Operating together 77 .........Door-carried pedal 78 .........Upper panel moved 79 ......Distribution ....Cases 80 .....Key slips 81 .....Upper panel 82 .....Lower panel 83 ..Wind 84 ...Organs 85 ....Stop actions 86 ....Cylinder 87 ....Disk 88 ....Electropneumatic action 89 ....Pneumatic action 90 .....With keys 91 .....Pipe organ 92 ...Organettes 93 ...Mouth blown 94.1 ..Combs 94.2 ...Combined 95.1 ...Cylinder type 95.2 ....Combined 96 ....Cylinder construction 97 ...Disk type 98 ....With star wheels 99 ....Multiple disks 100 ....With phonograph spindle 101 ...Note-sheet type 102 ..Bars 103 ..Bells 104 ..Drums 105 ..Outside players 106 ...Cylinder or disk 107 ...Electric or electropneumatic 108 ...Cabinet type 109 ....Case connectors 110 ....Pneumatic 111 ...Striker details 112 ...Constant power 113 ....Electric control 114 ....Pneumatic control 115 ..Selectors 116 ...Tracker-box location 117 ...Mechanical fingers 118 ...Plurality of sheets 119 ....Synchronized 120 ....Single tracker 121 ...Sheet not rolled 122 ...Winding and rewinding 123 ....With electric features 124 ....For two types of rolls 125 ....Shifting gear and clutch 126 ....Two clutches 127 ....Gears 128 ....Speed control 129 .....Roller and disk or cone 130 .....By wind supplyy 131 .....Compensation for diameter 132 ....Feeding 133 ....Rewinding 134 ....Brakes 135 ....Sheet pressers 136 ....Registration 137 .....Movable detector at edge 138 ......Controlling shifter bellows 139 .......Single detector 140 ....Extra end holes 141 .....Single end hole 142 ....Extra center holes 143 ....Flange shifted 144 ....Hand operated 145 ....Transposition only 146 ...Trackers and sheets 147 ....Electric 148 ....For organs 149 ....Vertical 150 ....Playing on wind and rewind 151 ...Trackers 152 ....Double scale 153 .....Trackers rigidly connected 154 ......Pivotally mounted 155 ......With slide valves 156 ....Duct closers 157 ....Modified for expression 158 ....Metal 159 ....Extensible 160 ....Pneumato-electric 161 ...Note sheets 162 ....Ends and joints 163 ....Overlapping holes 164 ....With expression and tempo marks 165 ....With marks for voice 166 ....With projections 167 ..Key locks 168 ..Couplers 169 ..Indicators 170 .Combined 171 ..Electric 172 ..Piano and organ 173 .Stringed 174 ..Pianos 175 ...Duplex 176 ...Separable 177 ...Cases 178 ....Fall boards and desks 179 ....Fall boards 180 ....Music desks or racks 181 ....Music receptacles 182 ....Swells 183 ....Protectors 184 ...Frames, string plate and sounding boards 185 ...Frames and string plates 186.1 ...Frames 186.2 ....Wrest planks 187 ...String plates and sounding boardss 188 ...String plates 189 ...Resonance devices 190 ....Supports or platforms 191 ....Insulators 192 ....Sounding boards 193 .....Materials 194 .....Multiple 195 .....Ribbing 196 .....Crowning devices 197 ...Stringing 198 ....Auxiliary strings 199 ...Strings 200 ...Tuning devices 201 ....Simple pin 202 ....Locking devices 203 .....Involving two pins 204 ....Worm gear 205 ....Direct pull 206 ....With push piece 207 ....With lever 208 ....Transverse pressure 209 ...Bridges 210 ....Inverted 211 ....Agraffes 212 ....On sounding board 213 .....With string holders 214 ....String clamps or holders 215 ....Depressing bars 216 ...Expression devices 217 ....Dampers lifted 218 ....Dampers held 219 ....Pianissimo devices 220 .....Curtain type 221 .....Hammer stroke shortened 222 ......Lost-motion preventers 223 .......In grand actions 224 ....Auxiliary strikers 225 ....Pedal mechanism 226 .....Locks 227 .....Spring fulcrum 228 .....Bearings 229 .....Pedals 230 ......Auxiliary 231 .......Pedal carried 232 .......With footrest 233 .....Mouse guards 234 ...Harmonic dampers 235 ...Couplers 236 ...Hammers actions 237 ....Horizontal 238 .....Down striking 239 .....Grand 240 ....Upright 241 .....Jack serving as retractor 242 .....Standard type 243 ....Details 244 .....Power-operated hammers 245 ......Sostenutoo 246 ......Electric striker 247 .....Jack constantly controlled 248 .....Inverted jack 249 .....Jointed jack 250 .....Action frames 251 .....Flanges and joints 252 ......Continuous 253 .....Checks 254 .....Hammer heads 255 .....Damper heads and stems 256 ...Bowed or violin pianos 257 ....With belt bow 258 ...Plectrum 263 ..Combined 264 ..Harps 265 ...Bodies 266 ...Erard action 267 ..Guitars 268 ..Mandolins 269 ..Banjos 270 ...Resonance devices 271 ....Closed back 272 ....Two rings 273 ....Mutes 274 ..Violins 275 ...Bodies 276 ....Bass bars 277 ....Sound posts 278 ...Combined chin rest and support 279 ...Chin rests 280 ...Supports 281 ...Positioning devices 282 ...Bows 283 ...Bow guides 284 ..Dulcimers 285 ..Zithers 286 ...Chord selectors 287 ....Damper-bar type 288 .....Dampers independent 289 ....Guard-plate type 290 ..Details 291 ...Bodies 292 ....Metal 293 ...Necks 294 ...Resonance devices 295 ....Auxiliary strings 296 ....With diaphragm 297 R ...Strings and fastenings 298 ....Guitar bridges 299 ....Guitar bridges with tailpieces 300 ....Banjo tailpieces 301 ....Mandolin tailpieces 302 ....Violin tailpieces 303 ....Spools 304 ....Tuning pegs 305 .....Friction increasers 306 ....Worm gear 297 S ....Stringss 307 ...Bridges 308 ....Banjo 309 ....Violin 310 ....Violin mutes 311 .....Attached 312 R ...Tunings 312 P ....Pedal operated steel guitars 313 ...Tremolo devices 314 R ...Finger boards and frets 314 N ....Nuts 315 ...Fingering devices 316 ....For semitone 317 ....For chords 318 .....Capo tastos 319 ....Stopping fingers or blocks 320 ...Picking devices 321 ....Picks on reciprocating carriage 322 ....Hand or finger picks 323 ...Hammer mechanism 324 ....Spring-shank hammer 325 ...Bowing mechanism 326 ....With keyboard 327 ...Instrument supports 328 ...Arm, hand, or finger rests 329 ...Article holders 330 .Wind 331 ..Pipe organs 332 ...Actions 333 ....Stop chambers 334 ....Single chamber 335 ....Pneumatic details 336 .....Membrane valve 337 ....Electric 338 ....Electropneumatic 339 .....Details ....Couplers 340 .....Pneumatic 341 .....Electric 342 ....Key valves 343 ....Stop actions 344 .....Combination 345 ......Adjustable 346 ...Swells 347 ....Electropneumatic 348 ...Valve tremolos 349 ...Pipes 350 ....Reed 351 ..Reed organs 352 ...Cases 353 ....Pedals 354 ...Folding 355 ...Wind-supply devices 356 ....Pressure and exhaust 357 ....Pedals 358 .....Auxiliary 359 ....Distribution 360 ...Reed boards 361 ....With qualifying tubess 362 ....With resonance chamber 363 ...Reeds 364 ....With tuning means 365 ...Key actions 366 ....Pedal 367 ....Pneumatic 368 ....Pallets 369 ...Stop actions 370 ....Combination 371 ....Celeste 372 ...Swells 373 ...Couplers 374 ...Fan tremolos 375 ..Minor reed 376 R ...Accordions 376 A ....Attachments, supports and locks 376 EA ....Electronically amplified 376 K ....Keys and keyboards 376 SM ....Shift mechanisms 377 ...Harmonicas 378 ....With resonance chambers 379 ....Supports 380 R ..Wood winds 381 ...Duplex 382 ...Clarinets 383 R ....Mouthpieces 383 A .....Reeds 384 ...Flutes 385 R ...Saxophones 385 A ....Woodwind supports 385 P ....Pads 386 ...Pitch-changing devices 380 A ...Double reed 380 B ...Bagpipes 380 C ...Edge tone 387 R ..Brasses 388 ...Valve type 389 ....With four valves 390 ....Rotary movement 391 ....Helical or sliding movement 392 ....Piston details 393 ....With substitute tubes 394 ....Tuning devices 395 ...Trombones 396 ....Tuning devices 397 ...Drainage 398 ...Mouthpieces 399 ....Adjustable 400 ...Mutes 401 ...Tremolos 387 A ...Supports 402 .Rigid vibrators 403 ..Bars and supports 404 ...With strikers 405 ...With electric action 406 ..Bells 407 ...With electric action 408 ..Tonguess 409 ..Forks 410 ..Resonators 411 R .Drums 412 ..Collapsible 413 ..Cord tighteners 414 ..Head material 415 ..Snares 416 ...Material 417 ...Inside 418 ..Tambourines 419 ..Tympani 420 ..Toy 421 ..Supports 411 A ..Unitension 411 M ..Mutes 411 P ..Practice Pads 422.1 .Drum and cymbal beaters 422.2 ..Combined 422.3 ..Hi-hat 422.4 ..Drumsticks .General features 423 R ..Keyboards 424 ...Plurality of manuals 425 ...Auxiliary 426 ....Pedal 427 ...Plurality of touch plates 428 ....Whole-tone scale 429 ...Curved front 430 ...Key bottoms 431 ....Folding 432 ...Key frames adjustable 433 ...Keys 434 ....Fulcrums and guides 435 ....Fulcrums 436 ....Guides 437 ....Plating 438 ...Manufacturing processes 439 ...Touch regulators 440 ....Resistance 441 ...Key holders 423 A ...Uniform 423 B ...Button type 442 ..Key selectors 443 ..Chord players 444 ...Pedal operated 445 ..Transposers 446 ...Auxiliary keyboard 447 ...Keyboard shifted 448 ...Intermediate parts shifted 449 ...Sounders shifted 450 ..Solo attachments 451 ..Special or enharmonic scales 452 R ..Materials 452 P ...Plastic material 453 ACCESSORIES 454 .Tuning devices 455 ..Strings 456 ..Pipes and reedss 457 ..Forks 458 ..Tools and machines 459 ...Tuning hammers 460 ...Felt pickers 461 .Recording devices 462 ..Electric 463 ..Applying expression lines 464 R .Producing color or light effects 464 A ..Lights in Instrument 465 .Exercising devices 466 ..For singers 467 ..For pianists 468 ...Attached to performer 469 ...Armrest rail 470 R .Teaching devices 471 R ..Charts or boards 472 ...Easel type 473 ...With transposing slide 474 ...With transposing dial 475 ...For transcribing 471 SR ...Slide rules 476 ..Blocks 477 R ..Indicators 478 ...For keyboard 479 R ....Single position 480 .....With transposing slide 481 .....Plurality of cards 479 A .....On keyboard 482 ....Shiftable 483.1 ...Tune Sheets 483.2 ....Notation Systems 484 ...For tempo 485 R ...For fingering 485 SR ....Slide rules 477 B ...Twirling and conducting batons 470 P ..Phonograph recorders 486 .Leaf turners 487 ..Motor operated 488 ..Gravity operated 489 ..Hand and spring operated arms ..Spring-operated arms 490 ...Plurality of latches 491 ....Fixed latches 492 ....Plurality of releasers 493 .....Latches and releasers pivoted 494 ......Integral 495 ...Single latch 496 ....Fixed latch 497 ....Sliding latch 498 ....Escapement 499 .....Air operated 500 ..Single spring arm 501 ...Latch and releaser integral 502 ..Player-operated arms 503 ...Plurality of actuators 504 ....Plurality of finger pieces 505 .....Actuators pivoted 506 .....Actuators and finger pieces integrall 507 ....Single finger piece ...Single actuator 508 ....Progressive action 509 .....Arms and actuator on different axes 510 ......With segmental gear 511 ....Sliding actuator 512 .....With segmental rack 513 ....Repeating action 514 .....Arms and actuator on different axes 515 .....Sliding actuator 516 ..Single arm 517 ..Single transfer bar 518 ...With buckling devices 519 ...With suction devices 520 ...Leaves prepared 521 ....With magnetic disks * ****************************** * DIGESTS * ****************************** DIG 1 Plural speakers DIG 2 Preference networks DIG 3 Foldable; detachable; collapsible DIG 4 Chorus; ensemble; celeste DIG 5 Chiff DIG 6 Cathode-ray tube DIG 7 Electric key switch structure DIG 8 Keyed oscillators DIG 9 Filtering DIG 10 Feedback DIG 11 Frequency dividers DIG 12 Side; rhythm and percussion devices DIG 13 Gas discharge tube DIG 14 Harmonicas DIG 15 Accordions DIG 16 Crescendo DIG 17 Cabinets DIG 18 Tuning DIG 19 Light sensitive resistor DIG 20 Monophonic DIG 21 Mechanical resonator DIG 22 Chord organs DIG 23 Electronic gates for tones DIG 24 Piezoelectrical transducers DIG 25 Pedal clavier DIG 26 Reverberation DIG 27 Stereo DIG 28 Service manuals DIG 29 Tape DIG 30 Fret control