Technical articles and documentation on mechanical music instrument restoration, construction, and theory. Contributed by MMD members and enthusiasts.
| Aeo W | 80 articles | Complete guide to rebuilding a 58-note Aeolian Orchestrelle reed organ |
| Ampico | 18 articles | Ampico reproducing piano: service manual excerpts, regulation and analysis |
| Ampico B | 11 articles | Ampico B intensity control, pouch regulation and site documentation |
| Barrel Piano | 2 articles | Barrel piano and Juettemann barrel organ mechanical specifications |
| Cellu | 3 articles | Replicating Aeolian lithographed celluloid nameplates and Roosevelt typeface |
| Concertola | 3 articles | Duo-Art Piano Concertola mechanical drawings by James Heyworth |
| Ddrl | 5 articles | Unique DDR-Laufwerk music box movement: mechanics and specifications |
| Dea | 1 articles | Hupfeld DEA reproducing piano technical documentation |
| Doman | 1 articles | Inventor L.B. Doman and the Maestro Co. of Elbridge, New York |
| Duo Art | 3 articles | Duo-Art fan accordion expression units, tubing diagrams and schematics |
| Hickman Action | 14 articles | Hickman grand piano action: patents, design analysis and specifications |
| Hickman Interview | 1 articles | Interview with Clarence Hickman about his grand piano action |
| Johan | 4 articles | Celesto and tremolo/vibrato mechanisms by Johan Liljencrants |
| Kastonome | 6 articles | Kastner Kastonome accenting player system: history, photos and drawings |
| Maestro | 1 articles | Maestro Company of Elbridge, NY: historical records and documentation |
| Mills | 4 articles | Mills Violano-Virtuoso and AC/DC rotary converter patents and specs |
| Motors | 3 articles | Electric motors for player pianos: types, specs and selection guide |
| Np | 1 articles | Aeolian celluloid nameplates: additional documentation and resources |
| Octet | 7 articles | Octet Design Corporation PD1 MIDI music system specifications |
| Ozone | 2 articles | Ultrozone ozone generator for leather preservation in player pianos |
| Pdayson | 1 articles | Manischewitz wine bottle organ by Phil Dayson |
| Pmorris | 2 articles | Aeolian 166-note pipe organ playing Duo-Art music rolls |
| Paper Pipes | 2 articles | Perretti paper pipes: construction and technical specifications |
| Reproduco | 4 articles | Reproduco Piano-Organ: pitman control system and factory history |
| Scales | 14 articles | Tracker bar scale photos and specifications for many instrument types |
| Scales 1 | 2 articles | Additional tracker bar scales: Aeolian organ player and others |
| Spool F | 12 articles | Nickelodeon and player piano spool frames, pulleys and belt drives |
| Terms | 9 articles | Dictionary of automatic musical instrument technical terminology |
| Themodist | 1 articles | Aeolian Themodist accenting system schematic diagram by Richard Vance |
| Tuning | 2 articles | Piano tuning: Jorgensen book review and stringing mathematics |
| Wood | 2 articles | Botanical names and properties of wood used in mechanical instruments |
| Wur | 1 articles | Wurlitzer Company historical records and factory documentation |
| Wur125 | 7 articles | Wurlitzer Style 125 band organ: specifications and testing |
| Wur Long Frame | 1 articles | Wurlitzer APP long roll tracker frame from U.S. Patent Office drawings |
Standalone Articles
- 166-note Aeolian
- 1908 Buffalo Convention
- 20er gamma
- 65- & 69-key Gebruder Bruder Organs in America
- A Dictionary of Musical Terms
- Aeolian Pianola Player Brake Adjustments
- Air-O-Player Tracking Adjuster
- Bass/Treble Player Piano Split Points
- Bellows Pump & Shunt Regulator
- Botanic names of wood
- Cakewalk CAL Template
- CAL program
- CAL program
- Calculations for Xylophone Bars
- Cylinder musical box technology:
- Decap MidiMapper
- Developing an organ harp
- Dimension Tables for Band Organ Pipes
- drum skin
- Duo-Art pouches
- Economical Audio Recording
- Electric Motors for Player Pianos
- Farrand Cecilian
- Forms of Shellac
- How to Fold the Cloth
- How to Make Harmonic Freins
- Instructions for Tuning Military Band Organs
- Ising intonation number
- Ising's formula
- Kastonome1
- Key Adjusters for Poirot Mirecourt Organ
- Lauter-Humana Player Piano Connection Diagram
- Leach & Overington
- leak meter
- M. Schulz Manual
- Magnet Valves
- Magnet Valves
- Making Brass Flat Wire for Organ Barrel Pins
- mandolin attachments
- mandolin attachments
- Manometer Vacuum Gage With Water Trap
- Mathematics of Stringing
- Mgnon Reed Organette
- MIDI: Musical Instrument Digital Interface
- Music Roll Tracking Systems
- Odeola in Klein Piano
- Optical Reader for Music Rolls
- Organ bellows
- Organ bellows
- Organ Pressure Regulator and Tremulant
- Organ Reed Pipe Tongue Dimensions
- Organ Scale
- Organ Specification
- Piano Roll Graph Paper
- Pitch and loudness
- pitman control system
- Pneumatic Pouch Forces
- Pneumatic switch assembly for reading music rolls
- Polyphon Top-Mounted Dampers
- Pouch operated valves
- PPCo Speed Control
- Pratt-Reed spool frame
- Pushbutton Kimball
- Pushing and bouncing air
- Recipe for Wooden Organ Flue Pipes
- Recipe for Wooden Organ Flue Pipes
- Recovering Player Piano Bellows
- Regina Coin Mechanism
- Regina nameplate
- Reproduco Piano-Organ
- Reproduco Piano-Organ
- Reproduco Piano-Organ
- Resonators and Q value
- Schematic Diagrams & Drawings for Player Pianos & Organs
- Seeburg L cabinet piano
- Simple Organ Pipe
- Simplified Reed Pipe Construction
- Single-Finger Tracker
- sound speed and pipe tuning
- sound speed and pipe tuning
- Testing Pouch Leather Sealants
- The Construction and Tuning of Vibrating Bars
- Tracker Bar Select Switch
- Transcribing Music Rolls to Computer File
- Tremolo and Vibrato Sounds
- Tubing Schmatic
- Tuning by Owen Jorgensen
- Unit Valves
- Universal Nickelodeon
- USB Controller
- van der Reijden
- Vanderhoofven Bottom Board
- Volume Indicator
- Weitenmensur
- Welte On/Off Selector
- Wurlitzer 1203
- Wurlitzer 165 Specification
- Wurlitzer APP scale
- Wurlitzer Band Organ Factory Ledgers
- Wurlitzer Caliola pipes
- Wurlitzer Valve
