bandmaster vs conductor

bandmaster and conductor both are nouns.

Word	Noun	Adjective	Verb	Adverb
bandmaster	Yes	No	No	No
conductor	Yes	No	No	No

As nouns, conductor is a hypernym of bandmaster; that is, conductor is a word with a broader meaning than bandmaster:

Other hypernyms of bandmaster include director, music director.

bandmaster (noun)	conductor (noun)
the conductor of a band	a device designed to transmit electricity, heat, etc.
	the person who leads a musical group
	the person who collects fares on a public conveyance
	a substance that readily conducts e.g. electricity and heat