| # | Title | Rating | Length |
|---|
| 1 | What Is And What Should Never Be [main guitar] | | 5:21 |
| 2 | What Is And What Should Never Be [bass] | | 5:21 |
| 3 | What Is And What Should Never Be [drum right] | | 5:21 |
| 4 | What Is And What Should Never Be [drum left] | | 5:20 |
| 5 | What Is And What Should Never Be [main vocals] | | 5:16 |
| 6 | What Is And What Should Never Be [vocal overdubs, take 1] | | 5:19 |
| 7 | What Is And What Should Never Be [vocal overdubs, take 2] | | 5:17 |
| 8 | What Is And What Should Never Be [guitar & vocal overdubs] | | 5:20 |
| 9 | What Is And What Should Never Be [mixdown #1]- engineer:
- George Chkiantz (in 1969-04)
- mixer:
- Eddie Kramer (from 1969-08-29 until 1969-08-30) and Jimmy Page (from 1969-08-29 until 1969-08-30)
- additionally recorded at:
- Groove Sound Studios in New York, New York, United States (in 1969-06) and Mayfair Recording Studios in Theater District, New York, New York, United States (in 1969-06)
- recorded at:
- Olympic Studios in Barnes, Richmond upon Thames, London , England, United Kingdom (in 1969-04)
- mixed at:
- A & R Recording, room A-1 in Manhattan, New York, New York, United States (from 1969-08-29 until 1969-08-30)
- recording of:
- What Is and What Should Never Be (in 1969-06)
- writer:
- Jimmy Page and Robert Plant
- publisher:
- WB Music Corp.
| | 4:59 |
| 10 | What Is And What Should Never Be [mixdown #2]- engineer:
- George Chkiantz (in 1969-05)
- mixer:
- Eddie Kramer (from 1969-08-29 until 1969-08-30) and Jimmy Page (from 1969-08-29 until 1969-08-30)
- additionally recorded at:
- Groove Sound Studios in New York, New York, United States (in 1969-06) and Mayfair Recording Studios in Theater District, New York, New York, United States (in 1969-06)
- recorded at:
- Olympic Studios in Barnes, Richmond upon Thames, London , England, United Kingdom (in 1969-04)
- mixed at:
- A & R Recording, room A-1 in Manhattan, New York, New York, United States (from 1969-08-29 until 1969-08-30)
- recording of:
- What Is and What Should Never Be (in 1969-06)
- writer:
- Jimmy Page and Robert Plant
- publisher:
- WB Music Corp.
| | 5:22 |
| 11 | What Is And What Should Never Be [mixdown #3]- engineer:
- George Chkiantz (in 1969-04)
- mixer:
- Eddie Kramer (from 1969-08-29 until 1969-08-30) and Jimmy Page (from 1969-08-29 until 1969-08-30)
- additionally recorded at:
- Groove Sound Studios in New York, New York, United States (in 1969-06) and Mayfair Recording Studios in Theater District, New York, New York, United States (in 1969-06)
- recorded at:
- Olympic Studios in Barnes, Richmond upon Thames, London , England, United Kingdom (in 1969-04)
- mixed at:
- A & R Recording, room A-1 in Manhattan, New York, New York, United States (from 1969-08-29 until 1969-08-30)
- recording of:
- What Is and What Should Never Be (in 1969-06)
- writer:
- Jimmy Page and Robert Plant
- publisher:
- WB Music Corp.
| | 5:15 |