"Party Sequence" is the seventh track by the English progressive rock band Pink Floyd

Pink Floyd

Pink Floyd were an English rock band that achieved worldwide success with their progressive and psychedelic rock music. Their work is marked by the use of philosophical lyrics, sonic experimentation, innovative album art, and elaborate live shows. Pink Floyd are one of the most commercially...

 on their third album, Soundtrack from the Film More. It is a short instrumental

Instrumental

An instrumental is a musical composition or recording without lyrics or singing, although it might include some non-articulate vocal input; the music is primarily or exclusively produced by musical instruments....

 credited to all members of the band, and consists of a sequence of tribal percussion, and a penny whistle playing the melody to "Seabirds", a song that Pink Floyd recorded for the More film, but was left off the soundtrack album.