| 1 | June 12, 1933 - Four Transcriptions from 'Emerson,' No.1 (beg.) | Charles Ives | 4:00 |
| 2 | June 12, 1933 - Four Transcriptions from 'Emerson,' No.1 (end) | Charles Ives | 1:29 |
| 3 | June 12, 1933 - Four Transcriptions from 'Emerson,' No.3 | Charles Ives | 2:33 |
| 4 | June 12, 1933 - Improvisations on a passage in Study No.23, Four Transcriptions from 'Emerson,' No.2, and Emerson Overture's Cadenza No.4 (with false start) | Charles Ives | 0:46 |
| 5 | mid 1930s - Four Transcriptions from 'Emerson,' No.1 (beg.) | Charles Ives | 2:14 |
| 6 | mid 1930s - Four Transcriptions from 'Emerson,' No.1 (end) | Charles Ives | 2:26 |
| 7 | mid 1930s - Study No.11 (abandoned) | Charles Ives | 0:50 |
| 8 | mid 1930s - Study No.11 | Charles Ives | 1:35 |
| 9 | mid 1930s - Study No.11, v2 | Charles Ives | 1:33 |
| 10 | mid 1930s - Patch for Study No.23 | Charles Ives | 0:41 |
| 11 | mid 1930s - Four Transcriptions from 'Emerson,' No.1 (beg., v2) | Charles Ives | 2:58 |
| 12 | mid 1930s - Four Transcriptions from 'Emerson,' No.1 (end, v2) | Charles Ives | 2:55 |
| 13 | mid 1930s - Four Transcriptions from 'Emerson,' No.3 | Charles Ives | 3:34 |
| 14 | mid 1930s - Four Transcriptions from 'Emerson,' No.3, v2 | Charles Ives | 3:42 |
| 15 | May 11, 1938 - Four Transcriptions from 'Emerson,' No.3 (beg.) | Charles Ives | 1:55 |
| 16 | May 11, 1938 - Four Transcriptions from 'Emerson,' No.3 (end) | Charles Ives | 0:49 |
| 17 | May 11, 1938 - Study No.11 | Charles Ives | 1:05 |
| 18 | May 11, 1938 - Study No.9: The Anti-Abolitionist Riots | Charles Ives | 2:04 |
| 19 | May 11, 1938 - Study No.2 with false starts | Charles Ives | 1:31 |
| 20 | May 11, 1938 - Study No.2 (beg.) | Charles Ives | 0:49 |
| 21 | May 11, 1938 - Study No.2 (end) | Charles Ives | 1:17 |
| 22 | May 11, 1938 - Study No.23 (partial) | Charles Ives | 1:02 |
| 23 | May 11, 1938 - Four Transcriptions from 'Emerson,' No.1 (abandoned) | Charles Ives | 0:19 |
| 24 | May 11, 1938 - Four Transcriptions from 'Emerson,' No.1 (middle) | Charles Ives | 1:07 |
| 25 | May 11, 1938 - Study No.23 (partial, v2) | Charles Ives | 1:10 |
| 26 | May 11, 1938 - Three Improvisations, No.1 | Charles Ives | 0:52 |
| 27 | May 11, 1938 - Sonata No.2 for Piano: Concord, Mass., 'Hawthorne' (excerpt) | Charles Ives | 0:17 |
| 28 | May 11, 1938 - Symphony No.1 / rejected mvt. 2 (Largo) | Charles Ives | 1:58 |
| 29 | May 11, 1938 - Unidentified (improvisation on the 'Sunrise' Candenza) | Charles Ives | 0:21 |
| 30 | May 11, 1938 - Study No.20 (partial) | Charles Ives | 0:32 |
| 31 | May 11, 1938 - Three Improvisations, No.3 | Charles Ives | 0:45 |
| 32 | April 24, 1943 - Sonata No.2 for Piano: Concord, Mass., 'Emerson' (partial) | Charles Ives | 2:07 |
| 33 | April 24, 1943 - Sonata No.2 for Piano: Concord, Mass., 'Emerson' (partial, v2) | Charles Ives | 1:26 |
| 34 | April 24, 1943 - Sonata No.2 for Piano: Concord, Mass., 'Emerson' (partial, v3) | Charles Ives | 4:05 |
| 35 | April 24, 1943 - Study No.2 + Study No.23 (mixed) | Charles Ives | 2:27 |
| 36 | April 24, 1943 - Four Transcriptions from 'Emerson,' No.3 (abandoned) | Charles Ives | 1:00 |
| 37 | April 24, 1943 - Study No.9 | Charles Ives | 2:16 |
| 38 | April 24, 1943 - They are There!, first take (abandoned) | Charles Ives | 1:59 |
| 39 | April 24, 1943 - They are There!, second take | Charles Ives | 3:31 |
| 40 | April 24, 1943 - They are There!, third take | Charles Ives | 2:46 |
| 41 | April 24, 1943 - March No.6 for Piano, with 'Here's to Good Old Yale' | Charles Ives | 2:12 |
| 42 | April 24, 1943 - Sonata No.2 for Piano: Concord, Mass., 'The Alcotts' | Charles Ives | 4:59 |