Green’s Dictionary of Slang

spirit n.

(US black) jazz or blues music.

1983

R. Klein Jailhouse Jargon and Street Sl. [unpub. ms.].

In compounds

spirit-room (n.)

(US) the stomach.

1848

‘Ned Buntline’ Mysteries & Miseries of NY 16: Florence at once became the price of nine drinks the richer, and the young gentlemen had another tier of grog in their spirit-rooms.