Thank you very much for your answers.
I love Music Studio. It’s my main app to create music, but I think that if you can’t load a wav instrument (for example) is a great limitation. I bought MS for my iPad, and more years ago I bought another app knowed for Android. I didn’t like it, but now it’s amazing, and I have hundreds of free instruments, without have to spend time creating them.
I know, this is not the type of comment I suppose likes here but, I really love Music Studio, and I think it’s a pity.
I’m sorry for my bad English.
Regards.