Listen and echo with your voice.
Listen again, and this time pause after the first note. Can you figure out what note this is on the keyboard? Once you’ve found it, listen again, and echo by playing as well as singing.
More audio tracks coming.
In the meantime, try picking any other key on the keyboard, and playing the pattern from the audio:
Do-Re-Mi, All Whole Steps.
Mi-Fa is a Half Step.
Sol is a Whole Step.