sprechgesang vs phonation

sprechgesang and phonation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sprechgesang	Yes	No	No	No
phonation	Yes	No	No	No

As nouns, phonation is a hypernym of sprechgesang; that is, phonation is a word with a broader meaning than sprechgesang:

sprechgesang: a style of dramatic vocalization between singing and speaking
phonation: the sound made by the vibration of vocal folds modified by the resonance of the vocal tract

Other hypernyms of sprechgesang include vocalisation, vocalism, vocalization, voice, vox.

sprechgesang (noun)	phonation (noun)
a style of dramatic vocalization between singing and speaking	the sound made by the vibration of vocal folds modified by the resonance of the vocal tract