The sleeve notes indicated that, at the time, a "commercially made record" had been co-produced by the composer, Baldwin Bergensen, and the lyricist/librettist, William Archibald, which was "issued on acetate to a few select individuals" and subsequently became an exceedingly rare collector's item. A copy was duly sourced by Blue Pear records, and re-pressed as vinyl LP with the catalogue number BP1001. The re-issue bears no date, although the liner notes refer to one of the cast members as the “late Virginia Vestoff”, which means the LP was released after her death in 1982. The LP also bore the following disclaimer I fine print, of which variations would appear on all subsequent issues: "This recording is taken from a rare acetate pressing of "The Crystal Heart". While perfectly listenable, this monaural LP pressing may not achieve the fidelity of more modern standards of sound reproduction. However, we feel the rarity of the material justifies its release, even with occasional, almost unnoticeable audio imperfections". Blue Pear Records went on to release many similar recordings of little-known Broadway and off-Broadway shows. Although it is sometimes assumed that these recordings were illegally taped by audience members, the LP liner notes are careful to point out that they came from legitimate (albeit non-commercial) sources such as authorized tape recordings made by the cast themselves (e.g. "The Sap of Life") or through the theatre's own sound system (e.g. "Drat! The Cat", "The Body Beautiful" and "Zenda") or from professionally produced acetate recordings that were made for limited or private distribution (e.g. "Kittiwake Island", "Sing Muse" and "Look to the Lilies"). The complete Blue Pear series, comprising 21 LPs and at least one EP, covers a variety of theatre-related material. The first four releases comprised original cast recordings of little-known off-Broadway musicals from the early 1960s; later releases included counterparts from cult Broadway flops from other periods, such as "The Body Beautiful" (1958) and "Drat! The Cat!" (1965) and other shows that had closed out-of-town before even reaching Broadway, such as "Zenda" (1963), and "Hot September" (1965) and "Lolita, My Love" (1971). Some of these shows involved major Broadway talents, including Alan Jay Lerner, Frank Loesser, Jule Styne, Richard Maltby, Jr. and David Shire, and Jerry Bock and Sheldon Harnick.