RE: Calling cadence
Not sure what to tell ya about CD's but there is a product on the market from Primo's called ( MTAMouth Call's Made Easy ) it comes with a instructional CD.
As for the right rhythm your looking for , hen yelps are normally in a set of three ( yelp yelp yelp ) , clucks are any where from one to five depending on how excited the hen is.
Tree yelps and fly down cackles sound like ( yelp yelp chuck chuck chuck chuckchuck chuck chuck ) with the sound of wings flapping.
Cutt's vary in cadence and rhythm , they can sound like ( peck peck peck ) or ( peck peckpeckpeck peck peck )like a barnyard chicken.
Just keep practicing and you'll know what sounds good when the boss tom gobbles back at you.