Coltrane Tapes (Amazing - But We Can't Hear Them...Yet)

There's more great material on Barry Kernfeld's website. Before the 2005 auction of jazz memorabilia by Guernsey's, he served as consultant regarding items contributed to the auction by Naima Coltrane's children. This included tapes with a wealth of unissued material, including:

• Nine complete studio versions of "Impressions" 
• Several complete takes of a sextet version of the first movement of "A Love Supreme," with Archie Shepp and Art Davis added to Coltrane's quartet
• The complete "John Coltrane and Johnny Hartman" session, providing insights into the process of producing this landmark recording - for example, "Lush Life" was done in two takes, while "Autumn Serenade" took 14 takes (!)

The tapes were withdrawn from the auction, and remain unissued. Read the whole story on Kernfeld's website (link above). Scroll down a bit to "John Coltrane in Rudy Van Gelder's Studio."