英文關鍵字
acoustic
alpha
and
antique
background
clef
disco
equalizer
flat
gramophone
grey
loop
looping
microphone
music
musical
notes
playing
sharp
sound
speakers
stars
stave
staves
stereo
system
treble
with
英文關鍵字
acoustic
alpha
and
antique
background
clef
disco
equalizer
flat
gramophone
grey
loop
looping
microphone
music
musical
notes
playing
sharp
sound
speakers
stars
stave
staves
stereo
system
treble
with