P.I. Tchaikovsky: Waltz Op.39 No.9 - Diatonic Analysis
This is quite a simple piece, what is good for analysing and learning it's diatonic structure. You can find more about it here.
Let's look at the diatonic chart:
We can see the whole song here. It is not complicated. Has 3 sections/themes. Within bars 6-9 we can see usual chord progression 6 2 5 1.
First two sections are in Eb major, third section jumps to it's minor mode with simple harmony and bass.
Chords:
