He wrote on the subject of piano technique and gave many recitals.

He devoted a lot of time to working on piano technique.

He wrote studies which are much more than just pieces to improve one's piano technique.

Katin has written many articles on piano technique and interpretation.

He worked very hard at his piano technique.

Well, you can, but it sounds like you are playing a Hammond with a piano technique.

Taubman was best known for her development of a new piano technique, which she called coordinate motion.

More important, these virtues evoked a sense of the music at hand rather than mere piano technique.

The rest has little to do with conventional piano technique.

She was sought out by jazz musicians of the era to coach them to improve their piano technique.