Below is a partial transcription of the middle of the theme music for NPR's All Things Considered. During this middle, the music transitions from 4/4 to 5/8 with the eighth note as a common pulse. At this point of transition, there is also something of an authentic cadence in B major: a top-voice A#5 harmonized by a F-sharp-major dominant triad resolves to a top-voice B5 harmonized by what will probably heard as a B rooted chord, even though an E replaces the expected D# -- making a 027 -- and the F# is in the bass. In the 5/8 section, the change of bass from this F# to C and back again occurs every three measures.
Into the 5/8 section, there is a slight increase in a particular hypermetric frequency: the two-4/4-measures pulse (16 eighth notes long) speeds up just a tad to the bass's three-5/8-measures pulse (15 eighth notes long). When spanning two pitches, this 16:15 ratio is the just diatonic semitone. Indeed, if one transposes this particular 16:15 tempo interval of .4375/.4666... Hz up a few octaves so that it sounds as the pitch interval of a semitone, and moves the two notes up to the next available equal-tempered semitone -- if A4 is 440 Hz -- then this pitch interval is A# to B, the same top-voice melodic motion at this same point of metric transition. Furthermore, the 5/8 downbeats, which come three times as frequently as the .4375 Hz change-of-bass frequency, would correspondingly map onto an F#, which accompanies the B in the 027 harmony at the metric transition. These tempo-pitch relationships are summarized below, using a color coding from above (16:15:5). The two outside three-note groups are pitches in equal temperament, and the middle three-note group expresses the three aforementioned tempos as pitches, using a ten-octave transposition.
