Scholars have identified 20,000 pieces of music linked to Shakespeare's works.
1	Scholars	scholar	NOUN	S	Number=Plur	3	nsubj	_	_
2	have	have	AUX	VA	Mood=Ind|Number=Plur|Tense=Pres|VerbForm=Fin	3	aux	_	_
3	identified	identify	VERB	V	Tense=Past|VerbForm=Part	0	root	_	_
4	20,000	20,000	NUM	N	NumType=Card	5	nummod	_	_
5	pieces	piece	NOUN	S	Number=Plur	3	obj	_	_
6	of	of	ADP	E	_	7	case	_	_
7	music	music	NOUN	S	Number=Sing	5	nmod	_	_
8	linked	link	VERB	V	Tense=Past|VerbForm=Part	7	acl	_	_
9	to	to	ADP	E	_	12	case	_	_
10	Shakespeare	Shakespeare	PROPN	SP	_	12	nmod	_	SpaceAfter=No
11	's	's	PART	PART	_	10	case	_	_
12	works	work	NOUN	S	Number=Plur	8	obl	_	SpaceAfter=No
13	.	.	PUNCT	FS	_	3	punct	_	_
