I've been practicing my flute for about a half hour a day before I pick up my alto. Back in the day I doubled flute when I had to, but I haven't played any flute in the last ten years or so. So I'm trying to build some chops by picking out whatever tune that is in my head while I'm unpacking the horn. So I guess that's like a form of ear training. Then I read a random tune out of a fake book, and take one chorus of improvision on it's chord changes. On a scale of 1 to 10 for flute playing skill, I'm about a 3. So a chorus of chord changes is quite the challenge, and really serves to help strenghten my chops. Then I do a page out of an old exercise book whose name escapes me at the moment, but it's like a good beginner flute book. So by this time I can hear Theobold Boehm spinning around in his grave, so it's time to pack up the flute and move to the alto.
I practice tunes their chord structure on alto. If I have a gig coming up that require certain tunes that I eithier don't know, or that I have to brush up on, then I'll shed those tunes. I get the sheet music from the bandleader, or if I'm leading, I have to find the music or take it off a recording. Once I have the music, my job is to research the sheet to make sure that all of the melody notes and all chord changes are correct. Tunes out of fake books always have at least one wrong note, or one wrong chord change in them. So if I don't get the sheet music from the actual composer, or their representitive, I check each note and chord change by listening to the composer's recording of the piece. Once I determine that my information is correct, I play the tune usually twenty times a day, ten times melody, ten times chord structure. Depending on the tune, I can memorise a tune in about a week. If the tune is more involved, it takes longer. I can never learn a tune too well, so I'm never completly finished learning a tune.
Right now, today, I'm brushing up on some familiar but busy tunes, Along Came Betty, Pensitiva, and Con Alma. I know all of these, have played them on gigs, but I enjoy playing through them, it's good practice. The melodies aren't easy, and the chord changes can be pretty tricky.