riff

nouns

a jazz ostinato; usually provides a background for a solo improvisation
riff
is a type of (narrower)
a musical phrase repeated over and over during a composition
ostinato

verbs

look through a book or other written material
"He thumbed through the report"; "She leafed through the volume"
flick, flip, leaf, riff, riffle, thumb
play riffs
riff
is a type of (narrower)
replay (as a melody)
"Play it again, Sam"; "She played the third movement very beautifully"
play, spiel