> import Sound.SC3 {- hsc3 -}

as the number of harmonics increases, the centroid is pushed higher

> g_01 =
>   let f0 = mouseY KR 1000 100 Exponential 0.2
>       nh = mouseX KR 1 100 Exponential 0.2
>       z = blip AR f0 nh
>       f = fft' (localBuf 'α' 2048 1) z
>       c = specCentroid KR f
>       p = poll' (impulse KR 1 0) c 0 (label "c")
>   in sinOsc AR p 0 * 0.1