<Table> <Tr> <Th_colspan="2"> Rock music </Th> </Tr> <Tr> <Th> Stylistic origins </Th> <Td> <Ul> <Li> Rock and roll </Li> <Li> rockabilly </Li> <Li> blues </Li> <Li> electric blues </Li> <Li> folk </Li> <Li> country </Li> <Li> rhythm and blues </Li> </Ul> </Td> </Tr> <Tr> <Th> Cultural origins </Th> <Td> 1950s and 1960s, United States and United Kingdom </Td> </Tr> <Tr> <Th> Typical instruments </Th> <Td> <Ul> <Li> Electric guitar </Li> <Li> bass guitar </Li> <Li> piano </Li> <Li> drums </Li> <Li> vocals </Li> <Li> keyboard </Li> </Ul> </Td> </Tr> <Tr> <Th> Derivative forms </Th> <Td> <Ul> <Li> New - age </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Subgenres </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Alternative rock </Li> <Li> art rock </Li> <Li> beat </Li> <Li> experimental rock </Li> <Li> garage rock </Li> <Li> glam rock </Li> <Li> hard rock </Li> <Li> heartland rock </Li> <Li> heavy metal (subgenres) </Li> <Li> indie rock </Li> <Li> new wave </Li> <Li> occult rock </Li> <Li> post-punk </Li> <Li> post-rock </Li> <Li> progressive rock </Li> <Li> psychedelic rock </Li> <Li> punk rock (subgenres) </Li> <Li> roots rock </Li> <Li> soft rock </Li> <Li> surf </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Fusion genres </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Baroque pop </Li> <Li> blues rock </Li> <Li> country rock </Li> <Li> dance - rock </Li> <Li> electronic rock </Li> <Li> folk rock </Li> <Li> funk rock </Li> <Li> industrial rock </Li> <Li> jazz fusion </Li> <Li> Latin rock </Li> <Li> noise rock </Li> <Li> pop punk </Li> <Li> pop rock </Li> <Li> raga rock </Li> <Li> rap rock </Li> <Li> reggae rock </Li> <Li> samba rock </Li> <Li> stoner rock </Li> <Li> sufi rock </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Regional scenes </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Argentina </Li> <Li> Armenia </Li> <Li> Australia </Li> <Li> Bangladesh </Li> <Li> Belarus </Li> <Li> Belgium </Li> <Li> Bosnia and Herzegovina </Li> <Li> Brazil </Li> <Li> Canada </Li> <Li> Chile </Li> <Li> China </Li> <Li> Colombia </Li> <Li> Cuba </Li> <Li> Croatia </Li> <Li> Denmark </Li> <Li> Dominican Republic </Li> <Li> Ecuador </Li> <Li> Estonia </Li> <Li> Finland </Li> <Li> France </Li> <Li> Greece </Li> <Li> Germany </Li> <Li> Guatemala </Li> <Li> Haiti </Li> <Li> Hungary </Li> <Li> Iceland </Li> <Li> India </Li> <Li> Indonesia </Li> <Li> Iran </Li> <Li> Ireland </Li> <Li> Israel </Li> <Li> Italy </Li> <Li> Japan </Li> <Li> Latvia </Li> <Li> Lithuania </Li> <Li> Malaysia </Li> <Li> Mexico </Li> <Li> Nepal </Li> <Li> New Zealand </Li> <Li> Norway </Li> <Li> Pakistan </Li> <Li> Peru </Li> <Li> Philippines </Li> <Li> Poland </Li> <Li> Portugal </Li> <Li> Russia </Li> <Li> Serbia </Li> <Li> Slovenia </Li> <Li> South Korea </Li> <Li> Spain </Li> <Li> Spanish - speaking world </Li> <Li> Sweden </Li> <Li> Switzerland </Li> <Li> Taiwan </Li> <Li> Tatar </Li> <Li> Thailand </Li> <Li> Turkey </Li> <Li> Ukraine </Li> <Li> United Kingdom </Li> <Li> United States (Southern United States) </Li> <Li> Uruguay </Li> <Li> Venezuela </Li> <Li> SFR Yugoslavia </Li> <Li> Zambia </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Local scenes </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Madchester </Li> <Li> Palm Desert Scene </Li> <Li> Trøndelag </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Other topics </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Backbeat </Li> <Li> Distortion </Li> <Li> Hall of Fame </Li> <Li> pop </Li> <Li> progressive music </Li> <Li> relationship with electronics </Li> <Li> rock band </Li> <Li> rock music terms </Li> <Li> rock opera </Li> <Li> rockism </Li> <Li> social impact </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> 2018 in rock music </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Rock music </Th> </Tr>

How many types of rock music are there
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