Biography
Mark Warren Spoelstra (June 30, 1940 – February 24, 2007) was an American singer-songwriter and folk and blues guitarist.
Bio from Wikipedia
Discography
Records they worked on — most-collected first.
Credited work
192 releases · 33 albums · active 1963–2024
- Performance · 334
- Other credits · 8
Studios: Sony Music Studios, New York City · Grande Ballroom · Winterland · United Recorders
Frequent collaborators
- Janis Joplin
- Various
- Big Brother & The Holding Company
- Doug Ashdown
- James William Guercio
- Harry Belafonte
- Ramblin' Jack Elliott
- The Brandywine Singers








