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DEMO VIDEO (courtesy of VST4FREE)


Designed as a light-weight sketching piano, the VS Upright No. 1 is a clean sampling of an upright piano, the standard of homes, small clubs and studios around the world. With a broad dynamic range and a bright, clear tone, the upright can still display a soft side when needed.


Features 3 velocity layers with 2 RR; sampled in tritones with a pair of wide, close mics. Full decays up to 30 seconds were recorded.

Windows version: VSTi + NKI

MacOS version: AU + NKI


VSTi/AU; Kontakt 4.2.4+ Optional (?)


71 Samples (?)


250-500 MB of HDD space

(+250 MB for installation files)


HDD of 7200+ RPM or SSD recommended



Old versions (VSTi or AU + Kontakt):

*NEW: Due to increasing obsolescence/bugs of the VSTi/AU version, we have assembled this SFZ version with freshly re-cut samples, now including release samples! To save space, it uses lossless .flac format, reducing size to under 50 MB! By far the best version available; requires that you install either Sforzando (Win/MacOS) or Sfizz (Linux) to use (both are free!).




In the basement of a Berklee College of Music dorm, there lives a few lonely Yamaha upright pianos in small practice rooms. These rooms were often quiet, and, being a welcome solace to the stresses of pursuing a career in music, became a welcome spot to improvise in peace.


One day in 2014 I decided to bring along a few mics and try sampling one of the pianos, as I had at the time not yet attempted to sample a piano. I picked an easy set of parameters, just 20 minutes worth of material, and this test is what became VS Upright No. 1

GUI (not shown to scale)



  • Upright Piano - Normal


If you require support, contact us.


Where can I find orchestral instruments?


Currently VSCO 2: CE is the place to go for orchestral sounds. Our  new SFZ-based project, VCSL will eventually include a brand new sample set of orchestral sounds, completely replacing VSCO 2: CE as a general-purpose sample soundset.


VSCL already contains 4 other pianos in SFZ format, including three grands and an upright!

How do I use a SFZ file?



SFZ files are a form of 'Soundware', like Kontakt .nki files or soundfonts (.sf2). They require that you install a sampler, either Sforzando or Sfizz, to use (both are free).


Once you install one of those, open it as a plugin (or as a standalone app if you don't want to route through your DAW!), then drag and drop a .sfz file into it. That's all there is to it!


The advantage is, if any one sampler software becomes obsolete or buggy, there are always others which can be used instead. Also, SFZ is an open format; you can freely edit the .sfz files in any text editor without much experience needed.


You can also load all kinds of other free SFZ instruments too, including VSCO 2: CE, VCSL, and Etherealwinds Harp: CE!


I'm having issues with the VSTi/AU version(s)!


As time has gone on, the Maize Sampler engine these patches are built on has become more and more unstable in newer operating systems and DAWs. As such, if you have issues with this version, we recommend using the SFZ version instead, as there is nothing we can do about this issue.


Ilir Bajri, creator of Orchestools One and Orchestools 306, has created a VSTi/AU version of several of our pianos, as Orchestools Keys (bottom of page).


Do all of the versions contain the same samples?


No, the SFZ version contains newly re-cut samples which include release samples (for when the key comes back up), more consistent start times, and better denoising. The VSTi, AU, and Kontakt versions contain older samples instead. We will not be updating the VSTi/AU versions, but will update the Kontakt version soon.

EU/UK customers: our products are also on KontaktHub and BestService!