Would it be possible? Not exactly a typical sequencer, but something like this:
I would record every note on my electric and acoustic guitar, bass, drums, and piano (essentially creating samples of each instrument that I own). Then export them to .wav and organize them by folder (/data/guitar/electric/string6fret1_F.wav). Then using a picture of each instrument made in Paint or similar program, have the user click the frets, drum, or note (piano) and have it place the note onto a playlist of notes. Then, File -> Export -> MP3 or WAV would export the song to a file.
Would this be possible to create in Visual Basic?