<Tr> <Td> B ♭ </Td> <Td> 4.5 ft (1.4 m) </Td> <Td> trumpet, cornet, flugelhorn, soprano trombone </Td> </Tr> <Tr> <Td> E ♭ </Td> <Td> 6.75 ft (2.06 m) </Td> <Td> alto horn, alto trombone, alto trumpet </Td> </Tr> <Tr> <Td> B ♭ </Td> <Td> 9 ft (2.7 m) </Td> <Td> tenor and bass trombone, baritone horn, euphonium, B ♭ horn, bass trumpet </Td> </Tr> <Tr> <Td> </Td> <Td> 12 ft (3.7 m) </Td> <Td> French horn </Td> </Tr>

What is the highest sounding instrument in the brass family