Help yourself to these rounds:

Rounds are short songs for several voices where the singers stagger their entrances. 'Row Row Row Your Boat' is the best known round.
When the first person reaches the asterix(*) in the music, the next person begins the song, and so on.

New round!
Onomatopoeia

I Am A Bat
Oh, I'm Hungry!
King of the Beavers
Sarcastic Jack
The Painter's Lament
The Old Man
The Tailor's Song
The Supervillian's Dream
Hum Walk

Help yourself to these bagpipe tunes:

Astoria Twitch.
David's March.
Frone's Dessert.
Marlene.
Count Ten.
Quimby's Gait.
Rotert of the Burg.
RSPS at the Fringe.

(If you perform or record them, please give credit. And let me know!)