(Apologies for any wrong terminology or ignorance - I'm relatively new to music!)
I have been learning to play arranger workstation (using auto-accompaniment) for the past three years with a music teacher. I had no real prior musical background (other than some forced violin and flute lessons in grade school and a year of drum lessons as a teenager) and found these past three years to be very helpful and educational as I have learned a lot about playing melody with the right hand and chords with the left (with some right-handed chords thrown in). I have progressed pretty quickly (according to my teacher) and am now starting to play small events with a guitarist friend. I started with a Yamaha PRS-443 and am now playing a Korg PA700.
I would now like to move on to learning to properly play two-handed piano (for now I would probably continue with my Korg arranger and possibly pick up a workstation or digital piano down the road) - not necessarily classical pieces, but I would like to be able to play rock, pop, and dance music with a band without using the auto-accompaniment. What are some good ways to go about this? I am interested in hearing about techniques and tips, as well as links to online lessons (paid or free). I am in my late thirties and have a busy career, but I try to devote about an hour a day to practicing.