F-G F-G-A-B-C sequence F-G-A-B-C tune 1 - backing only F-G-A-B-C tune 1 - demo with backing F-G-A-B-C tune 2 - backing only F-G-A-B-C tune 2 - demo with backing F-G-A-B-C tune 3 - backing only F-G-A-B-C tune 3 - demo with backing