Yesterday improvisation

This is a very old improvisation, but I decided to share it with you all.
Generally I don’t listen to The Beatles, their music and style is pretty far away from me. But I have a friend who is fond of the 60s and listens to such music.
A few months ago we were talking, and she was listening to music. It was very loud so I wanted to warn her about it. With words it usually doesn’t work, so I also sat down and started to produce some sounds, trying to play what I hear from her microphone. So the half of the song Yesterday was made.
If I’ll be bored enough, will also do the second one 😀