Model IV Fox Renard Intermediate Bassoon: Originally introduced in 1965, the Fox Model IV bassoon's long bore design can be identified by its very warm "round" tone, with even balance and excellent intonation throughout the entire range. The secure acoustical design and the durable body material make this an economical choice for schools, university music programs, and individuals seeking a second instrument. Budget conscious purchasers of a first instrument also find this a popular choice.