1. Sit at the keyboard with your fingers resting on the home row keys (ASDF).
2. Play the following notes with your right hand:
* E (middle finger)
* D (index finger)
* C (thumb)
* D (index finger)
3. Switch to your left hand and play the following notes:
* E (middle finger)
* D (index finger)
* C (thumb)
* B (pinky finger)
4. Repeat steps 2 and 3 until you reach the end of the song.
Here is a diagram that shows the notes you should play for each hand:
[Image of a keyboard with the notes for "Mary Had a Little Lamb" marked]
5. To add some flair to your performance, you can add some embellishments such as trills, turns, and mordents.
6. Practice playing the song until you can play it smoothly and confidently.
Here is a video that you can watch to learn how to play "Mary Had a Little Lamb" on the keyboard:
[Video of someone playing "Mary Had a Little Lamb" on the keyboard]