Does smilebasic has microphone capabilities? Is a guitartap/yousician/rocksmith possible?
Microphone capabilities?
Type in MIC and look at the suggested commands. Or better yet, there's a manual to read.
http://smilebasic.com/en/reference/#input
If you don't have a problem working with wave input.
Here's the only example of a game that uses the microphone that I can think of.
http://smilebasicsource.com/page?pid=70&cid=991
Petit Modem uses it also, but It's a really complicated program to look through I'm sure.