Okay, he's playing a few pieces.
Bartok - Mikrokosmos #75 (Sometimes crushes last triplet notes, and sometimes plays even quavers slightly swung)
Mozart - Sonata in A, K331 - Theme and Var 1 only (Var semiquavers are almost steady, except for rare moments when co-ordination is hard and the trill trips him up)
Bach - Prelude in c minor (broken chord prelude. Has slightly stiffness in LH when notes get quite far apart in bass, trying to work on it. RH is almost perfectly steady with semiquavers)
Schumann - Wild Horseman (no problem with steady quavers, hands are a little tense but not too bad)
Tchaikovsky - Morning Prayer (Dotted quaver and semiquaver patters are a little swing like, and not quite perfectly in time)
@quantum... Problem is, one he was doing a piece with crotchets and he was counting the quaver beats, however it wasn't:
1 + 2 + 3 +
it was more like:
1+ 2+ 3+
I've been using an app 'ReadRhythm' on the iPad to really help him try and feel and at least tap the rhythm to get a sense of evenness. I've been trying to focus on specific rhythms - making sure quavers are very even, then quaver-crotchet combos (syncopation), dotted quaver-semiquavers to make sure they're very tight and rhythmically secure.
The problem is - the mannerism is SO linked in with what he plays and he's done this for years, even before I taught him... so trying to undo it, is the problem I'm having... HOW does one try and ensure the mannerism does not distract from the playing?
@anamnesis... Interesting point, but I believe that just simple verbalisation can help. Have a student who is having trouble with syncopated rhythms? I get them to say the rhythm names for a while, tap it and say it, then get back to playing without saying, if they're confident. It helps with their understanding of the rhythm of the passage.