Blippo/Party Music Nonstop/Week 9

In Blippo+, Party Music Nonstop is a dance countdown show. This is about Week 9.

Title overlay: Party Music Nonstop

ANNOUNCER

It's Party Music Nonstop.

The Star Sawyer is back with a tune that's already a planet-wide sensation. Here's Toneburst Number 12.

Three dancers perform to the song.

This song, "Toneburst #12", attributed to The Star Sawyer, was transmitted in week 9.
The Star Sawyer's voice is referred to in the week 9 Rubber Report, where Neomie Lifto says "... Star's vocal range has gone supersonic", and puts her fingers in her ears as an ascending tone plays.
Also in week 9, the CMBR channel (which has previously contained only static) transmitted audio which contains a message. In summary, the CMBR audio contained several images encoded using the Slow-scan television (SSTV) method. These images contain text which spell out a message: "THE SONG IS THE SIGNAL". See the CMBR week 9 page for more details.
In week 10, several messages in Femtofax Subspace Spotlight refer to "Toneburst #12": eg did anyone else notice a similarity between the new The Star Sawyer track and **SCHWA's Low Hum recording? It's just kinda...pitch shifted? **altheaCosmos.

If Toneburst #12 is "THE SONG" referred to by the CMBR SSTV images, then perhaps Toneburst #12 also contains a message.
We don't want to reproduce the copyrighted song here, but some analysis (originally by 39AndABit) follows.

Below is a visual representation of the Toneburst #12 audio. Note the time markers at the bottom, starting at 0 seconds and ending approximately 1 minute later. The audio waveform (in blue) is shown directly above the time markers. Above that is a black, red and yellow sonogram, made with Amadeus Pro (a Mac app - one of many that can create a sonogram).

Note the frequency scale to the left of the sonogram. Low sounds (like the notes at the left of a piano) are at the bottom, high sounds (right end of a piano) at the top. Here, the scale runs from approx 16Hz at the bottom to approx 10,000Hz at the top. (Note we're using a logarithmic scale here: each octave corresponds to 54 vertical pixels.) Humans can hear from approx 20Hz up to 20,000Hz.
Each pixel in the sonogram has a colour that shows the intensity (energy) of the sound at that particular point in time (left to right) and frequency (bottom to top). Here, zero energy (silence) is shown as black, medium energy as red and high as yellow.

Below is the same sonogram, with some sounds annotated. For example, the announcer's voice can be seen at the start, and the applause at the end.

At about 36 seconds from the start, a "mountain" can be seen in the sonogram. Some on the Playdate Discord have speculated that this could relate to TV Mountain on Planet Blip. A sound rather like this can be made by turning a bathroom tap on and off: the "shhhh" sound of a running tap can be like white noise, which has energy at all frequencies, from low to high, and would appear on this sonogram as yellow pixels from bottom to top.
A marimba (a musical instrument with wooden notes, like a xylophone) can be heard, repeatedly playing the pattern of notes shown below.

Some rapid low thuds can be heard six times during the song. (Note it may be necessary to use headphones to hear them.) These are marked as green rectangles in the annotation above. We can see and hear these more effectively if we slow down the track (to half speed) and also bend the pitch upwards (by one octave). The video below shows the first occurrence of this sound (proceeded by the announcer).

Some similar rapid low "clicks" can be heard at about 24 seconds in to the song - marked with a blue rectangle in the annotation above. The first four sounds are perhaps identical. The video below shows the last two sounds, again, slowed down and pitch bent up. At this speed and pitch, this sounds like a pattern played on a drum.

These rapid thuds and clicks may perhaps be examples of micromontage, described at the Wikipedia page on sound collage. Note that page refers to the band The Mothers of Invention as an early example of use of sound collage in popular music, and that week 9 Movie Maniacs showcases "Dottie Demo", from the "Mothers of Destruction".

So does "Toneburst #12" contain a message, similar to how the week 9 CMBR audio contains audio which can be decoded to images which spell out some text? Perhaps... but we have not yet identified it.