By
eHow Arts & Entertainment Editor
Difficulty: Moderately Challenging
Step1
Pick a key. A lot of accordion players might choose middle C as it fits the keyboard well and they'll be able to stick to white keys for scale notes.
Step2
Find your bass buttons. With your left hand, identify the buttons (in the case of key of C, the C button and the G button, and possibly F) that fit the 1, 4 and 5 scale notes of your key. These are the most commonly used bass buttons for a waltz.
Step3
Start on the C bass button and move your accordion. If it's contracted, begin expanding, and vice versa. Make a short note by moving the accordion only for a short time, with your finger on the C bass button.
Step4
Start your bass waltz. Before bringing in your right hand, it's best to start up a rhythm with the bass. Since you've just done the beginning note, you'll want to continue, counting in threes. Play two more notes, either C-G, G-C, or another combination, keeping to a 1-2-3 beat.
Step5
Keep up the bass notes in rhythmic sets of three, and then add some keys from the left hand keys. Remember, in key of C, you can use the white keys for scale notes and create melodies without hunting for the thin black keys on the keyboard.