"Black Bottom" is played by Lou Gold & his Orchestra, rec.06/1926 and originally released as Pathé 36475 and Perfect 14656.
Can't track down this other side for now....
"Looking for a boy" is played by the Bar Harbor Society Orchestra, dir. Ben Selvin, rec.01/1926,
"Sweet and low down" is played by Lou Gold and his Orchestra, rec.01/1926,
Both originally released in the US as Pathé 36375 and Perfect 14556.