The way the notes are patterned on a 49 key keyboard is similar to that of any other keyboard except for the number of notes the keyboard has and the notes the keyboard starts and ends with. A 49 key keyboard starts with the note C and ends with C. It consists of 4 octaves plus one additional note, C. So in all there are 5 Cs.
A 49 key keyboard pattern is characterized by the twelve notes C, C-Sharp (D-Flat), D, D-sharp (E-Flat), E, F, F-Sharp (G-Flat), G, G-Sharp (A-Flat), A, A-Sharp (B-Flat), and B being repeated 4 times with an additional C at the end.
