Hi Navy Guy,

It is normal to experience muscle fatigue - it's like you've started a new mini-exercise program, using muscles in ways that may not have been done before.

But also, you want to investigate your technique and how your body feels, and experiment a little. Try and find the postion that requires the least effort (muscular effort) on your part, that also allows you to do the technique you are working on. How is the height of your chair? Are you using a strap? Does it change things if you play standing up?

Pro's make it "look so easy" because they have mastered how to keep their body as relaxed as possible while also playing the instrument in a very focussed and intentional way.

Don't overdo it. Massage the tired muscles and let them rest up in between practice sessions.

And have fun! - Lisa