Hello guys, thanks for the response ! Of course there are lots of specific situations depending on type of instrument, type of music and type of individual performing... and all that a) make occasional techniques preferable b) leaves a great deal of personal freedom to get most out of it. Indeed no dictating *laws* or *rules* but the fact IS that many authors of tutors have done so and with dubious motives.

The actual discussion at c.net dealt with ECs - that has to be pointed out but I didn't. Since the Anglo ( and other bisonoric squeezeboxes ) mostly does not offer the same options for "bellowsing" as the English or Duet even when fully chromatic and even if all notes are represented on push and pull. It is still a fact the the *control* as I said for mechanical reasons is better on pull. Habits may of course may make you experience the opposite but that does not change involved physics.

Speaking about qualifications just a couple of words. I am certainly no expert player ( firstly since I am not a musician at all ). During the 25 years by now that I have been active in net discussions about concertinas I have come across just one more ergonomic professional ( Michael Bell who is an engineer) but no physician except myself having a specialist degree in ergonomics. There are a couple of other MDs who are active in c.net for example but sadly ( or wisely...) enough they don't speak up about anatomical, physiological, medical or aprticularly ergonomical subjects. This has meant that I have mostly been a lone shouter in the desert but as you see I have not given up trying to spread a little bit of basic information. I find it more or less a duty doing so when people are obviously confused or mistaken.

Finally ( for the moment...) just one personal comment - to Stuart Estell: The handles make enormous difference. The Anglo and Duet handles make holding and carrying the instrument less physically demanding than the ( entirely stupid...) English handle. Disregarding the differences of handles of course playing the Anglo, Duet or English is basically the same in most respects.
When speaking about *ergonomics* in general one of the most common mistakes is saying "Just do what feels comfortable for you" - even though this of course also MAY be quite accurate. The main problem is that without wide and long term experience you are incapable to know if the temporary *feelgood* will be durable or even causing ircurable disability from later physcial harm. Dilemma....

Don't let it end here - there are many more aspects to consider