I used to play the piano for 6 years between ages 7 and 13. I practised 3 hours a week and had a weekly one hour lesson with a teacher. I played pieces like Beethoven's Fur Elise, Bach's Inventions no.1 and 8, as well as Paul Desmond's Take Five. This put me at about RCM level 7, which is equal to ABRSM grade 5. I had classical training so obviously I also practised scales, arpeggios, etc.
I never really liked classical music though, so after those six years I moved to another teacher mainly focusing on playing pop songs by ear, but after a year I finally quit.
It's been 4 years since I quit playing the piano and haven't touched it since. Lately I started to appreciate classical music, and I really want to get back to playing the piano. Assuming I get a good teacher, how long will it take me to regain the skills and technique I lost? Thanks
Edit: just a few more questions i: 1) does this previous experience give me an edge over other pianists at the same level as the leveli reached but who gained it later than me?, will this experience help progress faster or is it meaningless? 2)assuming i have regained the technique and level i was before i quit, and suppose we mark begginer as 0% and being able to play liszt's transcription of danse macabre as 100%, where does it put me on that scale? 3)the same as number 2 ut this time we mark being able to accompany opera singers in operas like macbeth, or nabucco using the piano accompaniment from the vocal score as 100%