you want to synthesise strings which vibrate above wooden resonator bodies of different sizes, producing complex harmonics, sometimes without being played, only due to sympathetic resonance. you'd also want to model the high dynamic range of those instruments, and quite likely their different articulations (of which you'd need at least pizzicato, staccato, and legato) which produce completely different envelopes and microtonal sounds. the lack of frets means every little imperfection in the performance of the players is intrinsic to the sound produced.

hmm..

reach for a sample library. even the cheap ones are decent these days.

you want to synthesise strings which vibrate above wooden resonator bodies of different sizes, producing complex harmonics, sometimes without being played, only due to sympathetic resonance. you'd also want to model the high dynamic range of those instruments, and quite likely their different articulations (of which you'd need at least pizzicato, staccato, and legato) which produce completely different envelopes and microtonal sounds. the lack of frets means every little imperfection in the performance of the players is intrinsic to the sound produced.

hmm..

reach for a sample library. even the cheaper ones are decent these days.