It should be pretty self-explanatory. Select your instrument of choice, then click on the notes in whatever order you fancy. Hit 'done' when you're finished, and listen to your masterpiece! Improvisation is arguably the most important and most challenging skill any jazz musician learns. The Bb blues scale is a good starter, and this project doesn't allow for accidentals, so just about anything should sound good. I've been in jazz band on trombone for two years, have been playing concert band tuba for four years, and played piano for four and a half years. Have fun!
I saw this SDS and couldn't resist, so I spent my morning making this. All scripting, graphics, and recordings are by me! (there's a reason you can only use the instruments that I know how to play :p) Remixes are welcome! Please do give credit, though :) Here are some suggestions for what you could add: More instruments More range to the instruments A freestyle option More keys to play in A function to remember and play back songs Different dynamics Different note lengths Other articulation A staff that shows the notes Be creative! Have fun with it!