arrhythmia
barrage
beat
beating
bump
chink
click
clink
clop
clump
clunk
crump
dance
didder
disquiet
disquietude
dithers
drum
drum music
drumbeat
drumfire
drumming
dull thud
fidgetiness
fidgets
flap
flick
flicker
flit
flitter
flop
flump
flutter
heartbeat
heartthrob
heaving
inquietude
pad
palpitant
palpitation
panting
paradiddle
pat
patter
pitter-patter
plump
plunk
pop
pound
pounding
pitapats
pitapatted
pitapatting
bellwethers
grovelling
relentlessness
sextette
uprise