C&A:

The first half of Profoundly Blue is a slow three-chorus duet between guitar and bass with regrettably loud, intrusive celeste accompaniment.  Many times the celeste masks the intricate details that Charlie Christian is placing into his solos on the two takes.  But it’s well worth putting up with the celeste just to listen to CC’s wonderful blues choruses.

Charles gets more blue here than when he’s playing a blues with the sextet.   He starts his solo with the same phrase that he used on Paging the Devil on the Christmas eve concert more than a year earlier where he was also very bluesy.   There’s so much good stuff here that it’s hard to comment on everything—but do compare the line at mm 6 & 7 in the second chorus with mm 8 & 9 of the third.   This solo couldn’t be more perfect.