Comping?

I felt I needed to know more about playing the piano as an accompaniment to a voice or instrument rather than playing the melody also. Funnily enough there isn't terribly much out there on the internet but eventually I came across Bill Hilton. He has clearly also recognised the lack of material available and has created an array of really useful video lessons available on YouTube that provided me with exactly the information I was after.

Here are 2 on Jazz piano comping.

Here are two on Pop piano comping

He has also produced a very aptly named book 'How to really play the piano'