There are specialized applications, such as BestPractice, which eliminate this inconvenience and keep the original tune even if you play your music more slowly or faster.
With BestPractice you will obtain the ideal sound at the desired speed. For instance, you can play a 45 rpm recored at a 33 rpm speed without sound quality being affected. Additionally, you can change the pitch of the music without affecting the length.
There are various situations when BestPractice proves to be extremely useful. For instance, you want to study music but normal speed is too fast for you to understand; you want to sing along, but you can only match your voice by changing the key; you want to transcribe music and the speed is too fast; you want to experiment with various speeds and have fun. On any of these situations, the tone is not distorted when you change the speed of your audio tracks.
The fun part about BestPractice is that you can eliminate voice and play karaoke with friends. Even if the lyrics are foreign and harder to understand, this application helps you transcribe both music and voice so you can play and sing the music on your own.
BestPractice is recommended both to musicians and average users who want to experiment with music and have fun. The former will be delighted to maintain the original tune at different speeds, and the latter will prepare a karaoke evening more easily.
The main problem with slowing down or speeding up music is that sound becomes distorted and the results are unsatisfactory.