For those not in the know, Robert “Bobby” Callender never followed trends — he followed visions. A New Yorker with the soul of a seeker, he began his career in the early 60’s with a string of pop singles (including the hit “Little Star”) before evolving into one of psychedelic music’s most enigmatic figures.

Fusing jazz, R&B, Indian raga, and spoken-word mysticism, Callender released two cult albums — Rainbow (1968) and The Way (1971) — that sounded more like spiritual transmissions than records. Then, silence. For decades, his trail went cold… until now.

Rainbow: The Anniversary Concert, released by Think Like A Key Music o November 14th, 2025, marks his reemergence — an astonishing live performance of his masterpiece, staged more than 50 years after its original release.

And so he didn’t just return — he transcended.

1. Rainbow
2. Nature
3. Sade Masoch
4. Purple
5. Mother Superior
6. Autumn
7. A Man
8. I’m Just High on Life
9. Symphonic Pictures
10. Spiritual Chant of Thankfulness
11. The Flow Within Thee
12. Raga Man
13. Little Star

With the two discs capturing the full Rainbow concert in sound and vision, Callender opens on the softly beautiful title track Rainbow and the all-embracing Nature, and then we get given some storytelling within Sade Masoch, the effective Purple, the whispery Mother Superior and the alluring Autumn.

Up next is an absolutely absorbing A Man and a riveting I’m Just High on Life, and they are in turn backed by the melodious Symphonic Pictures, an ambient Spiritual Chant of Thankfulness, the elegant The Flow Within Thee, before the informative Raga Man and a 60th anniversary performance of Little Star bring the set to a close.

This is a two disc set that captures the full Rainbow concert in sound and vision as a digipak with a 16-page booklet and the DVD is Region 0 NTSC DVD.

Official Purchase Link