| Digest Nr | Subject and Author |
|---|
 |
| 2000.05.19.03 | Scientific Instrument Challenge & Glass Harmonica, from Will Herzog |
| 2000.05.19.02 | Scientific Instrument Challenge & Glass Harmonica, from Bill Finch |
| 2000.05.19.01 | Scientific Instrument Challenge & Glass Harmonica, from Richard Moody |
| 2000.05.18.03 | Scientific Musical Instrument Challenge, from Mark Kinsler |
| 2000.05.18.02 | Scientific Musical Instrument Challenge & Glass Harmonica, from Julian Dyer |
| 2000.05.17.01 | Scientific Musical Instrument Challenge & Glass Harmonica, from Julian Dyer |
| 2000.03.19.12 | MIDI Player Piano Challenge Tune, from George Bogatko |
| 1997.09.16.07 | Supertone & Challenge 88-note Rolls, from George Bogatko |
|
