I had a "Rob Naylor" moment yesterday - on violin. I've been playing about 15 months now (started when I was 64) and I'm not doing too badly. I normally practice between 1 to 3 hours a day, depending on other commitments. However I picked the thing up for a 20-minute practice yesterday afternoon. Result? Total f*ck*ng rubbish! It just wouldn't hang together. Crap bowing, wrist as stiff as a broom handle, left hand all over the place. In a word - shite. So the only thing to do yesterday was just put it away and pick up "No. 18" (my new guitar - and the number doesn't refer to how many guitars I have but to the serial number inside the instrument!)

This crap practice experience doesn't happen very often, but - just now and then - it does happen. Which is one of the reasons I haven't yet taken the violin to a session. So I do understand the frustrations of learning an instrument... :-)