Here's a great lesson on learning a tune via sheet music. The music is attached.
Do you learn melodies like this? Notice how much fun he has playing the melody!
I mention 5ths in the beginning of the video. I play 5ths but then quickly dive in to 4ths as I'm playing. So think 5ths and 4ths as I talk. Of course an inverted 5th is a 4th and vice versa.
Deconstruct Summer Time Harmony
You can check this out. I included an mp3 of a synth vibe playing the etude. It's a good study for beginners and intermediate players.
YOU write in the chords and analyze everything!