This video captures a Radikal Spectralis piece by Spectralis creator Jörg Schaaf, Autumn Rain.

via SCHAAFJOERG:

This song is dedicated to all the people, who posted these kind comments after listening to “Stories”. I hope, you will enjoy this one as well. All what you hear comes live from one Spectralis 2 synthesizer recorded simply from the stereo main out. No external FXs were used. Just the two built in digital delays are giving some room and atmosphere. The song gives an impression about the dynamic range of this incredible synth. OK – I am one of the fathers of this instrument but on the other hand, I am trying hard to become a musician too. And as a musician I must admit, that this is simply the best synth, money can buy;-)