This edition of "60 Etudes for High Tuba or Euphonium" was engraved from the original files found on IMSLP and was originally for French Horn. It is the companion volume to more well-known "Second Horn" book. It is not an easy book and covers a very wide range. Mostly high. It is highly recommended for any aspiring High School student as well as any college or professional performer. It works great on F Tuba.