 Townsend 's employs a variety of vocal techniques in his work , including screaming , growling or even falsetto . His vocal range has been noted to be over 5 octaves ( C2 to F7 ) . 
 Townsend <a href='null_genetive' title='1'><mark>'s</mark></a><a href='uninflect' title='2'><mark>employs</mark></a> a variety of vocal techniques in his work , including screaming , growling or even falsetto . His vocal range <a href='been_done' title='3'><mark>has</mark></a> been noted to be over 5 octaves ( C2 to F7 ) . 
Townsend  employ a variety of vocal techniques in his wrk , including screaming , growling or even falsetto . His vocal range done been noted to b over 5 octaves ( C2 to F7 ) .