Guess key:
youtu.be/9Azqv4RSMwg?si=6MHA1_7OuZt3Fb9P

Fruit lines:
youtu.be/VM0Fm6oaDig?si=zybPbjPx6fGPzfsW

Treble staff:
youtu.be/RMeO5z7HKxM?si=Plz4tZPmIwQOiETA

Bass staff:
youtu.be/7B9PN-IB0ME?si=aP7M9MxnjwmRTArG

Note alphabet:
youtu.be/-CYtjzZE09A?si=XFxHXa556NGGO8Fe

Note duration:
youtu.be/q447dfyM_U0?si=xc2GGUGTOn1sHpEE

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