The “sonance” of the album’s title is an obsolete word for a sound or a tune.
The opening track “Five Will Get You Ten” was originally credited to pianist Clark, but later co-writing credited was given to Thelonious Monk. The song is now believed to have been written solely by Monk as “Two Timer”, though never recorded by him. The song’s lead sheet was allegedly discovered by Clark in Monk’s home, or the home of jazz patroness Pannonica de Koenigswarter, and passed off as a Clark tune to pay for his drug addiction. The song’s debut recording under its original title was by Monk’s son, T. S. Monk on his 1997 album Monk on Monk.