Hi Jan and Mart,
Here are the helpful "Guidelines for Practicing a Musical Instrument" from Marsalis and Ma I mentioned - http://scottmacleod.com/GuidelinesPracticingMusicalInstrument.htm. Point for point, I've found them germane and engaging. What do you think of these? And how would you 'rif' with them?
And here are "Guidelines for practicing loving bliss vis-à-vis practicing a musical instrument" -
http://scottmacleod.com/GuidelinesPracticingLovingBlissvavMusicalInstrument.htm - which are my explorations of approaches to eliciting loving bliss, vis-à-vis the above Musical instrument guidelines. It might be fun to explore some of these questions further at some point.
And here's the Loving Bliss (eliciting this neurophysiology) wiki subject page at WUaS for further explorations - http://worlduniversity.wikia.com/wiki/Loving_Bliss_(eliciting_this_neurophysiology).
Nice to make music with you yesterday.