For my first JavaScript project I have made buttons that act as musical notes.

Choose a note for the 1st key to play. Example: a

The available notes you may choose are: A, B, C, D2, E, E2, F, F2, G, G2

Choose a background color for the 1st key. Example: red or #FF5733

Choose a keyboard key to play the 1st key. To find a key's keycode go to this website: find keycode
For example, on a normal QWERTY layout the keycode for the g key is: 71

Choose a note for the 2nd key to play. Example: a

The available notes you may choose are: A, B, C, D2, E, E2, F, F2, G, G2

Choose a background color for the 2nd key. Example: red or #FF5733

Choose a keyboard key to play the 2nd key. To find a key's keycode go to this website: find keycode
For example, on a normal QWERTY layout the keycode for the h key is: 72