Final answer:
Exploring three musical pieces, we discussed their keys; C major with no sharps or flats, G major with one sharp, and E flat major with three flats, and unique aspects like pentatonic scales, unusual instruments, vocal techniques, and odd time signatures that distinguish them from other radio selections.
Step-by-step explanation:
To answer the question about musical selections and their characteristics, let's explore three pieces and discuss their keys and the interesting aspects that differentiate them.
For illustrative purposes, let's say the first piece is in the key of C major, which has no sharps or flats. An interesting aspect might be its use of a pentatonic scale that gives it a distinct sound that stands out on the radio.
The second piece might be in the key of G major, which has one sharp, F#. It could feature a unique instrument or a vocal technique rarely heard in contemporary music, setting it apart from other songs.
The last piece might be set in the key of E flat major, which includes three flats: Bb, Eb, and Ab. Perhaps this piece uses an uncommon time signature like 5/4, giving it a peculiar rhythm that captures the listener's attention.