Is there an app that will change the key of a song without changing the tempo?

I use an app you can buy for your smartphone called Transcribe (about $14.00). You can also buy it as a software for your computer for 40.00 to change the key of the track of any song you want to learn. You can do more than just change the key without changing the tempo but it’s without a doubt one of the best tools for musicians.

There’s lots of other programs and they all do the same thing. Audacity is software you can get for FREE. If you put a track into Transcribe (or other similar programs) you can easily change the key and still keep the integrity of the sound together. It’s really a pretty amazing program. I sound like I am selling it but I get no kickback and I’ve been recommending it to my improvisation students for many years. It’s really useful for musicians who want to learn a song in a different key or to slow a song down to learn it easier. It also allows you to LOOP sections of a song and practice the section over and over and so many other features that make learning music easier.

Highly recommended.