The music note letter names C, D, E are found on any piano or keyboard. They are located just below every two black note group.
Please take time to watch each piano tutorial video before playing each piece. This will help you learn each piece of C, D, E music more quickly.
The best first piece to learn is C, D, E Waltz for Right Hand Piano. This will help you become familiar with both the forward and backward motion between these three piano keys.
After you have mastered the first piece you are now ready for the Left Hand Piano Finger Exercise C, D, E, F, G.
The second section of the Introductory Piano Music includes Piano Pieces with treble clef F-G-A-B. You will need to use a different hand placement for each of these pieces as explained and demonstrated in each of the piano tutorial videos.