Sergey Batov wrote:

> Dear Csounders!
> I'd like to know: is it possible to change "place of plucking"
> and time of decay in a simplest form of Karplus-Strong algorithm
> ("cycling" delay line + LPF)?

Yes, simply prefilter the excitation signal with a FIR comb filter.Time
decay: loop filter gain at DC & filter cutoff (harmonic decay rate)