Good question.I would say the answer is a resounding yes. First consider the reasons for learning piano in the first place. Fairly high up on the list for most people is the ability to share beautiful music, and their ideas about it with others. To that end, I always try to find an opportunity to perform every piece that I learn. It may be a formal concert, an informal play through for friends and family, or a recording. This gives focus to your practice and also provides you with a tangible goal.
1) No matter how completely, utterly forgotten you think a piece is, it takes a mere fraction of the time to relearn it than it would a fresh piece. A piece which takes me a month of hard graft the first time round is usually perfected in under a week. This is true whether it is a piece I learned a few months ago or several years ago.
2) Things not only come back much faster, but to a much higher level. Technical problems you once faced often just melt away, and you can often gain a much better understanding of the "big picture" of the piece the second time.
3) Relearned pieces stay in the memory longer than freshly learned ones. I often forget new pieces as soon as I move on to something else, but the same isn't true of old pieces. In some cases, after returning to a piece for the third or fourth time, I am able to retain it for good.In short, relearning old pieces is not only important, it is also far easier and far more enjoyable than you may imagine.Ben
Hello!My answer-YES! It really isn't as much work as you think. Why? Because old pieces are actually in our memory; we just have to get them again, which takes a small fraction of time usually. It will actually help you in your playing; when you go over a old piece, you hear and play your older interpretation of it; you realize how better you've gotten! And you can even add your ideas to the piece Not only will it help you in your abilities, but it will be of great help when you want to play for people, whether they be the audience at a formal concert or for your friends and family!Not only is it NOT a waste of time to relearn old pieces-- it's encouraged!Hope I was of help!
I agree with everything said.Just adding, there will obviously be some things missing as the piece will definitely be "rusty" but most of the issues (if you didn't have them before) will be gone by the end of the week.However, if you had a certain issue with a piece that never got resolved, it may stay unresolved, or you might find yourself having no problem with it anymore. However, you will most certainly find the issue somewhat easier to deal with.
Lately, I've realized that if someone asked me to a play a piano piece for them, I really couldn't do it. I have the music I'm working on right now, which isn't in good enough shape to perform, and I have pieces that I got ready to perform and sounded very polished, but I no longer know how to play. As soon as I get a piece to performance level, I just move on to something else, and as a result, the only time I could play a piece for someone at performance level is if they get very lucky and ask just as I'm finishing off a piece.So, is it worth it for me to go back and re-learn old pieces, or am I just wasting my time? It seems like it would take a lot of time and energy to keep all these pieces at performance level, and that's time I could spend working on new pieces, but on the other hand, it's kinda saddening that I've played piano for 12 years and I couldn't just sit down and play someone a piece.
Yes. You wouldn't want all that time and effort spent on your old pieces to be wasted, right?