Some examples of speech/song music (list to be added to)
"Pierrot Lunaire" Schoenberg c. 1916
"Red Bird" EP: Christopher Logue/Tony Kinsey Quintet, 1959
"Leader of the Pack": The Shangri-La's 1961 0r 62
"Deck of Cards": Wink Martindale..early 60's
The Fugs - several albums, mid 1960's onwards
"Come out" and "It's gonna Rain" Steve Reich
"The Gift" Velvet Underground 1967/8
Laurie Anderson - several albums 1970's onwards
"My Life in the Bush of Ghosts" Eno/Byrne 1980
and of course most rap and hip hop!