I know transcribing melodies and bass lines are good for ear training, and that I have to be determined, and after 200 songs, it will get easier. What about the chords? I have heard lots of pros here asking newbies to transcribe by ear, instead of going for notation/tabs. But almost all pros recommend buying the real/fake books to get the chords of the jazz standards. And most of the advices for a newbie to learn a standard, is to look at the progressions/changes, and try to make some bass lines using the chord/scale notes and see which one sounds nice. 1. Should I even start to try to determine the chords from just the melody, without looking at the real/fake book or chord charts? This I assume will be harder to get-it-right, since it is just solely based on sounding nice or not, contrary to the note-by-note transcription of the melody. 2. Are there any quick tips on music theory for chords transcription? Say the notes that are used in the particular bar might give hints on the chord, or say the starting note and the ending note of the bar might give hints on the chord? 3. Lead sheets. From what I learn from the forum, seems that most jazz sessionist will need lead sheets or chord changes to play a tune. If the bassist already know the melody of the tune, could he do without the chord changes on paper, and just like improvise the walking bass lines, instead of thinking, ok A Chord, 1-2-4, C Chord, 1-2-4...etc... Thanks in advance.