It doesn't have to be underground it could be any type of music.
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	4	nsubj	4:nsubj|7:nsubj:xsubj	_
2-3	doesn't	_	_	_	_	_	_	_	_
2	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	4	aux	4:aux	_
3	n't	not	PART	RB	_	4	advmod	4:advmod	_
4	have	have	VERB	VB	VerbForm=Inf	0	root	0:root	_
5	to	to	PART	TO	_	7	mark	7:mark	_
6	be	be	AUX	VB	VerbForm=Inf	7	cop	7:cop	_
7	underground	underground	ADJ	JJ	Degree=Pos	4	xcomp	4:xcomp	_
8	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	12	nsubj	12:nsubj	_
9	could	could	AUX	MD	VerbForm=Fin	12	aux	12:aux	_
10	be	be	AUX	VB	VerbForm=Inf	12	cop	12:cop	_
11	any	any	DET	DT	_	12	det	12:det	_
12	type	type	NOUN	NN	Number=Sing	4	parataxis	4:parataxis	_
13	of	of	ADP	IN	_	14	case	14:case	_
14	music	music	NOUN	NN	Number=Sing	12	nmod	12:nmod:of	SpaceAfter=No
15	.	.	PUNCT	.	_	4	punct	4:punct	_
