sprechgesang vs sprechstimme

sprechgesang and sprechstimme both are nouns.

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

As nouns, sprechgesang and sprechstimme are synonyms defined as:

sprechgesang and sprechstimme: a style of dramatic vocalization between singing and speaking

sprechgesang (noun)	sprechstimme (noun)
a style of dramatic vocalization between singing and speaking	a style of dramatic vocalization between singing and speaking