Mysteries: The Impulse Years 1975-1976

Mysteries: The Impulse Years 1975-1976 is a 4CD collection of the Keith Jarrett albums Mysteries, Shades, Byablue and Bop-Be. The set was released in 1996 by Universal Music Group. Previously unreleased alternate takes are present on each disc.

The music was performed by Jarrett and his affectionately-titled 'American Quartet', composed of Charlie Haden, Paul Motian, and Dewey Redman. Guilherme Franco contributed additional percussion to Mysteries and Shades.

In 1997, a 5-CD boxset called The Impulse Years: 1973-1974 was also released, composed of Fort Yawuh, Treasure Island, Death and The Flower, and Back Hand.

Aside from their appearances in boxset, Shades and Bop-Be have only ever been released on CD in Japan. However, in October 2011 Shades was reissued internationally (with Mysteries, as a single disc set) as part of the Impulse! 2-on-1 series.

Track listing - Disc 1: Shades

1. "Shades of Jazz"
2. "Southern Smiles"
3. "Rose Petals"
4. "Diatribe"
5. "Shades of Jazz" alternate take
6. "Southern Smiles" alt. take
7. "Rose Petals" alt. take
8. "Rose Petals" alt. take

All compositions credited to Keith Jarrett

Track listing - Disc 2: Mysteries

1. "Rotation"
2. "Everything That Lives Laments"
3. "Flame"
4. "Mysteries"
5. "Everything That Lives Laments" alternate take
6. "Playaround" previously unreleased

All compositions credited to Keith Jarrett

Track listing - Disc 3: Byablue

1. "Byablue" (Paul Motian)
2. "Konya" (Keith Jarrett)
3. "Rainbow" (Margot Jarrett)
4. "Trieste" (Motian)
5. "Fantasm" (Motian)
6. "Fantasm" (Motian) alternate take
7. "Yahllah" (Motian)
8. "Byablue" piano solo (Motian)
9. "Trieste" (Motian) alt. take
10. "Rainbow" (Margot Jarrett) alt. take

Track listing - Disc 4: Bop-Be

1. "Mushi Mushi" (Dewey Redman)
2. "Silence" (Charlie Haden)
3. "Bop-Be" (Keith Jarrett)
4. "Pyramids Moving" (Redman)
5. "Gotta Get Some Sleep" (Redman)
6. "Blackberry Winter" (Loonis McGlohon; Alec Wilder)
7. "Pocketful of Cherry" (Haden)
8. "Gotta Get Some Sleep" (Redman) alternate take
9. "Blackberry Winter" (McGlohon; Wilder) alternate take

References

1. http://www.vervemusicgroup.com/artist/music/detail.aspx?pid=9543&aid=2686