Music by Kevin MacLeod. Released into the public domain (CC Zero). Download link:  http://freepd.com/Simple/Barroom%20Ballet

MacLeod's description:

Genre: Silent Film Score
Length: 0:56
Instruments: Piano
Tempo: 115

Simple I-V-V-I staccato piano duet. 031
ISRC: US-UAN-11-00310
Bright, Humorous 2007