set $vel0 1
set $vel1 .8
set $vel2 .6
set $vel3 .4

lo $lownote
hi $highnote

@loop
on $lownote $vel1
wait 1
off $lownote

up $lownote
valid $lownote @skip1
lo $lownote
@skip1

on $lownote $vel2
wait 1
off $lownote

up $lownote
valid $lownote @skip2
lo $lownote
@skip2

on $lownote $vel1
wait 1
off $lownote

up $lownote
valid $lownote @skip3
lo $lownote
@skip3

on $lownote $vel3
wait 2
off $lownote

up $lownote
valid $lownote @skip4
lo $lownote
@skip4

on $highnote $vel3
wait .5
off $highnote

down $highnote
valid $highnote @skip5
hi $highnote
@skip5

on $highnote $vel2
wait .5
off $highnote

down $highnote
valid $highnote @skip6
hi $highnote
@skip6

on $highnote $vel1
wait 1
off $highnote

down $highnote
valid $highnote @skip7
hi $highnote
@skip7

on $lownote $vel2
wait 1
off $lownote

up $lownote
valid $lownote @skip8
lo $lownote
@skip8

goto @loop

