The given pitches correspond to the musical notes F natural, Eb, A#, Bbb, and C# when considering intervals such as the diminished 6th, major 3rd, perfect 4th, minor 7th, and augmented 5th from the specified starting notes.
Step-by-step explanation:
The appropriate letters for the given pitches are as follows:
Diminished 6th below Bb: The note is F natural. A diminished 6th is one half-step less than a minor 6th, and since a minor 6th below Bb is Gb (or F#), we lower that a half step to get F natural.
Major 3rd below G: The note is Eb. A major 3rd interval consists of 4 half-steps, so counting down from G, we get F, E, and then Eb.
Perfect 4th below D#: The note is A#. A perfect 4th consists of 5 half-steps, so counting down from D#, we move to D, C#, B, and then to A#.
Minor 7th above Cb: The note is Bbb (B double flat). A minor 7th consists of 10 half-steps. Since Cb is the same as B, a minor 7th above would normally be A, but because we start on Cb, we need to lower A by two half-steps to Bbb to maintain the correct notation.
Augmented 5th above F: The note is C#. An augmented 5th interval is one half-step larger than a perfect 5th. A perfect 5th above F is C, so raising that a half-step gives us C#.