<Tr> <Th> US Hot Rock Songs (Billboard) </Th> <Td> 34 </Td> </Tr> <Tr> <Th> US Adult Alternative Songs (Billboard) </Th> <Td> 40 </Td> </Tr> <Tr> <Th> US Alternative Songs (Billboard) </Th> <Td> 18 </Td> </Tr> <Tr> <Th> US Rock Airplay (Billboard) </Th> <Td> 23 </Td> </Tr>

What is the song left hand free about