Carolyn Graham & Jazz chants

Do you know Carolyn Graham?
Her books are mainly publised from Oxford.
Acccording to the Oxford press, she is ihtroduced like that;

Carolyn Graham is the creator of Jazz Chants® , which connect the rhythm of spoken American English to the beat of jazz.
She developed the technique of jazz chanting during her twenty-five years of teaching ESL in the American Language Institute of New York University.
She has also taught at Harvard University and has conducted workshops in the NYU School of Education, Columbia Teachers College in New York and Tokyo, and elsewhere throughout the world. Ms. Graham is the author of numerous Jazz Chants® books, all published by Oxford University Press.

Yesterday I went out to attend her workshop. It was a kind of "trip" for me, because it was a two hour local train trip.

It was "exciting", "amazing". I was really impressed.
It was a lecture but it seemed like a "concert".

I always think to my self that I'm not good at enjoying something without thinking profits
. I tend to seek profits for events what I pay money.

For example, I go out to eat something, I always think the valnce of the contents and prices.
And I ofthen think when it's a good dish "though it's a little expensive, but considering the contents I have to accept the price".

Or
I attend a work-shop (especailly lecture how to learn and teach English), after that I think whether it was useful for me.

Or
though the other day I did a 30 minute exercise, after that I thought that it might be effective to keep in a good shape.

This time, I really enjoyed without any excuse.
Reconsidering myself well, I always enjoy "music". "Plaing the piano" and "listning to music" always make me calm and relaxed. And this time the "show" (though it was a "lecture") gave me a lot of fun.