Instructions
Plug in the instrument peripheral you want to use first when creating your song, and then start up the "Guitar Hero" game of your choice in your console.
Enter the "Music Studio" mode and then select a template or a tempo and key. If you select a template, a tempo and key will be selected for you depending on the genre you select.
Start playing. You can play at half-time so you can get the timing exactly right, or you can play at double-time if you are composing a song that you want to sound slower. If you make a mistake, you can rewind using the "Start" button and pressing the "Back" button on your instrument.
Add other instrument tracks. If you have just laid down a sweet baseline, you can add drums or a guitar melody to your song. Note: the Music Studio does not support vocal tracks.
Add production elements. Both "Guitar Hero: World Tour" and "Guitar Hero 5" feature production sound effects and equalizers that can be used to make your track sound perfect.
Publish your song. As long as you have a connection to the Internet, you can upload your track, along with your band name and custom album art to the "GH tunes" service.