# - C
To play, press and hold the enter key. To stop, release the enter key.
D - I
To play, press and hold the enter key. To stop, release the enter key.
J - M
To play, press and hold the enter key. To stop, release the enter key.
N - R
To play, press and hold the enter key. To stop, release the enter key.
S - Z
To play, press and hold the enter key. To stop, release the enter key.