Data Sheet
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78. Soft Playing Heartbeat Music
Build the circuit shown, press the switch
(62) and you will hear some music in low
volume from the speaker (93), with the
heart LED (69) beating to the music.
This is a crude example of how an audio
spectrum display works on an amplier/
music system.
79. Quiet Musical Chairs Game
Tell players they must be very quiet if they
want to hear the music. Place chairs in a
circle with backs on the inside, one fewer
than the number of players. All players
stand in circle around the chairs. Press
and hold switch (62). Soft music will play
with the red light (LED 69) ashing. Let
the music play for several seconds then
release switch (62) and the music will
stop. Each player must sit in a chair, but
one will be left out. Remove that player
and one chair and repeat until only one
player remains.
80. Stop The Music Game
Replace the press switch (61) with the reed switch (83). Blindfold a player and place the circuit nearby in the room. Turn
ON the switch (62) and place the magnet on the reed switch (83) to keep the music playing. Record the time required for
the player to nd and remove the magnet and stop the music. The one with the lowest time is the winner.
81. One Finger Restart
Press the switch (62), you will hear the music play in a low volume from the speaker (93). Then touch the touch plate
(80). The music will be restarted even if it is still playing.
1st level
2nd level
1st level