Resonance 'inferieure' and 'superieure'

#messiaen #techniques #modes
In which I write a short piece of music after trying to explain Messiaen's concept of superior and inferior Resonance. I confess to not really understanding this idea ( from Chapter 14 of _Techniques_. If you've got some insight, please share in comments or email. thanks!

(edit about a year after publishing this, I made a second video:    • Messiaen  'Technique of my Musical La...  )

0:00 intro
1:00 a concept I'm not entirely clear on
3:40 synesthesia and natural harmony
8:18 Messiaen's idiosyncratic filter on to natural phenomenon
10:08 Paul Dukas 'resonant effect'
12:04 example of Superior resonance ( from Jolivet)
16:02 entirely intuitive reading of inferior resonance
18:42 further exploration of these ideas in a compositional exercise
22:53 playing the piece (music written to explore these ideas)