The following short program produces some interesting sound effects. Changing the values before and after STEP in line 30 either lengthens or shortens the echo. Changing the value taken from X, in line 60, will increase or decrease the number of echoes.

10 X=15
20 P=RND(1)*300
30 FOR N=P TO P+100 STEP 5
40 SOUND 1,N,X
50 NEXT N
60 X=X-2
70 IF X<2 THEN 10 ELSE 30

P. Brown, Bexley, Kent