NUSofting - Marimka v1.2 (Pc)

Physical Modeling Synthesizer
* Add 5Th to adjust the level of one extra harmonic.
* Mod 5Th to tune the added harmonic from a low fifth to a higher one.
* Mod 5Th Monitor indicates when a perfect 5Th is tuned.
* More presets.

From the homepage:
Marimka is a virtual instrument on the line of HarpTime and Peti, that is targeted to ethnic folk sounds, in this case marimba and balafon, tuned percussions. It is able also of other percussive sounds like frame drums.

Marimka is anyway not merely an acoustic emulation, at extreme settings it reveals a strong synthetic timbre, so it's very nice also for hybrid textures.
Despite the few controls you see on the GUI the range of different percussive sounds is huge.

Marimka is pure shareware, it's freely downloadable as trial,
but if you use it in your music you have to buy a license for 19 USD.