[Tuning] Nonchord quarter tones

Here a small demonstration (in Pythagorean just intonation) of the nonchord tone technique to play quarter tones in polyphonic context.

Youtube:
http://www.youtube.com/watch?v=WMPsg8S9LKc

Soundcloud (for Margo):
https://soundcloud.com/justintonation/nonchord-quarter-tones

In my opinon all quarter tones are strong dissonances and must be treated as such.
The nonchord quarter tone technique demonstrated here will allow one to make polyphonic maqam music and other new music never heard before.
The possibilities are limitless.

Kind regards,
Marcel de Velde