I play the piano for two years now and I would like to focus much more on ear training from now on. I'm able to know if a wrong note has been played, but do not have the ability to identify what note should be played instead. My goal is to find the melody of a song by ear and eventually to play songs my ear.
I'm busy to make a list of 25 famous songs where each of the 25 intervals in an octave (12 ascending, 12 descending + perfect unison) occur in the first two notes of the song. But memorizing 25 songs and it's corresponding intervals would be a big task for me. It could cause confusion and too much thinking and checking. Compressing and bringing the 25 back down to a lower number would be more helpful.
So I was wondering if there is a list with as few as possible songs that covers up all the 25 intervals? Or more easy to answer: what (easy, slow and famous) songs (with lyrics) are there that contains a lot of intervals?