-- jmcc <https://soundcloud.com/soundaspureform/bach-prelude>
let p1 = [[60,64,67,72,76],[60,62,69,74,77],[59,62,67,74,77],[60,64,67,72,76]
         ,[60,64,69,76,81],[60,62,66,69,74],[59,62,67,74,79],[59,60,64,67,72]
         ,[57,60,64,67,72],[50,57,62,66,72],[55,59,62,67,71],[55,58,64,67,73]
         ,[53,57,62,69,74],[53,56,62,65,71],[52,55,60,67,72],[52,53,57,60,65]
         ,[50,53,57,60,65],[43,50,55,59,65],[48,52,55,60,64],[48,55,58,60,64]
         ,[41,53,57,60,64],[42,48,57,60,63],[44,53,59,60,62],[43,53,55,59,62]
         ,[43,52,55,60,64],[43,50,55,60,65],[43,50,55,59,65],[43,51,57,60,66]
         ,[43,52,55,60,67],[43,50,55,60,65],[43,50,55,59,65],[36,48,55,58,64]]
    p2 = [[36,48,53,57,60,65,60,57,60,57,53,57,53,50,53,50]
         ,[36,47,67,71,74,77,74,71,74,71,67,71,62,65,64,62]
         ,replicate 16 60]
    p = concatMap (concat . replicate 2 . (\x -> x ++ drop 2 x)) p1 ++ concat p2
    tr = impulse kr 5 0
    freq = demand tr 0 (dseq 1 (mce (map midiCps p)))
in pan2 (freeVerb (lpf (saw ar (lag freq 0.03)) 1000) 0.3 0.5 0.35) 0 0.2