I just purchased your book from Amazon and would like to clarify a point. When the exercise says to visualize all five notes at once on my flute, does this mean the sound or the letter name of the note?
For IFR students practicing Exercise 2: Melody, this is a demonstration of the exercise Seven Worlds in the 4th harmonic environment. Ferran Badal explores the harmonic environment on the alto flute.
For IFR students practicing Exercise 3: Pure Harmony, this is a demonstration of the exercise Seven Worlds Expanded on the flute. Anna Crusat demonstrates the exercise exploring the 7 chord in the modal range.