what's mentioned is so true and you're credited for your experie

 

On Tree and Woods relationship (pronounciaiton is tree; pitch and rhtthm are woods):

approach to accent reduction starts with two factors (rather than vowels or consonants correction: 1.       Pitch and rhythm characteristics of American English.

On relative-ness:

Speech rhythm is created by emphasizing stressed vowels, not by reducing un-stressed sounds

 

Nice writing and a lot of usefull information, hopefully more on rhythms/pitch/infleciton/intonation to share and progress together.