Some of videos that might give you a good first impression:
Night Thing (words and music JVK)
Here you hear two Kelstone tracks, both in a guitaristic way (both hands playing one musical part at the time).
One track is the bass, and the other track you hear the chords and the soloïng.
The Kelstrut (words and music JVK)
Three Kelstone tracks:
Bass track and chords track (both in a guitaristic way :both hands playing one musical part at the time).
And one track with the soloing. On this track, several techniques are being used but all in a guitaristic way.
Kelstone Sample (music JVK)
One Kelstone track with different playing techniques, both in a ‘pianistic’ manner and ‘guitaristic’ manner.
Kelstone wiht a mallet (music JVK)
You can use a mallet to hit the strings on the Kelstone. It’s a bit like on the hammered Dulcimer but here you have 26 fret per string and also the possibility to bend and vibrate the note once it is hammered.
Short Stories (music JVK)
8 short pieces of original music demonstrating different techniques of playing on the Kelstone, mostly in a pianistic way (one hand bassline, the other hand chords or melody)
Wirelust (music JVK)
Three Kelstone tracks: bass, chords and solo.
Impro late at night (music JVK)
Two Kelstone tracks: one accompaniement (pianistic: bassline and chords played by separate hands) and one solo track, all techniques.