Felix from Germany (@Flixxx) has uploaded several highly interesting tutorial-videos last week, showing the more interesting/alternative/creative ways of using Eurorack modules.
They are not all about Doepfer, but he shows modules of all kinds of Eurorack brands and he does some nice and clear narration with it.
He even plans to do more of those quick looks in the future, so keep an eye on his YouTube channel.
Video 1: Doepfer A-160 Clock Divider as Sub-OSC/Frequency Divider (Eurorack Modular Synth Demo)
" A short video, showing the Doepfer A-160 Clock Divider Eurorack module being used as a frequency divider/square wave sub oscillator. This works by feeding the trigger input a VCO signal (either a square wave or saw wave) and using the division outputs (/2 /4 /8 etc.) as square wave VCO outputs. If you have any further questions, please post them below :) Thanks for watching!"
Video 2: Intellijel uVCF as Saw Wave VCO (Eurorack/Doepfer Modular Synth Demo)
" Another Modular Synthesizer video! This time I'm talking about how to use the Intellijel uVCF multimode filter module as a sine, saw and spike/rectified wave VCO. If you have any questions or comments, please post them below :) Thanks for watching!"
Check out the full Music and Tutorials playlist on his YouTube Channel
Get his music at Bandcamp and/or follow him on Twitter: http://twitter.com/Flixxx