Hirake Kokoro-Jiseiki※Stereo version(It became a record first in Japan because of the monaural recording. )

This single's value is enhanced by the fact it was one of the last monaural recordings in stores when stereo began to take over.

The 1955 monaural recording of the Fifth by Karel Ančerl was the first of Martinů's symphonies to be released commercially.

Even though the disc is a monaural recording, the initial transfer is made in two channels to capture both walls of the record groove.

The records were monaural recordings at 33-1/3 rpm.

The long play albums originally sold for $1.98 retail and consisted of strictly monaural recordings, often drawn from 78-rpm discs.

Among them: "Eliminating organ music, avant-garde, atonal, aleatoric music, waltzes, virtually all vocal music, all monaural and historical recordings."

Instead, they are monaural recordings made on a pair of Nagra tape recorders for reference purposes by a film crew that was documenting the sessions for a proposed television documentary.

The original monaural recording was "reprocessed for stereo" in the early 1960s, and that LP release remained in print into the 1970s as Decca DL 78011.

Patti Page also released a monaural recording of songs from the suite as Manhattan Tower on Mercury Records MG 20226 in 1956.