<Tr> <Th> No . </Th> <Th> Title </Th> <Th> Length </Th> </Tr> <Tr> <Td> 1 . </Td> <Td> "Wish You Were Here (Live)" </Td> <Td> 5: 40 </Td> </Tr> <Tr> <Td> 2 . </Td> <Td> "Coming Back to Life (Live)" </Td> <Td> 6: 40 </Td> </Tr> <Table> <Tr> <Th_colspan="3"> CD Maxi </Th> </Tr> <Tr> <Th> No . </Th> <Th> Title </Th> <Th> Length </Th> </Tr> <Tr> <Td> 1 . </Td> <Td> "Wish You Were Here (Live)" </Td> <Td> 5: 40 </Td> </Tr> <Tr> <Td> 2 . </Td> <Td> "Coming Back to Life (Live)" </Td> <Td> 6: 40 </Td> </Tr> <Tr> <Td> 3 . </Td> <Td> "Keep Talking (Live)" </Td> <Td> 6: 54 </Td> </Tr> </Table>

What is the pink floyd song wish you were here about