I hadn't seen the mission about the SAP8 containers before, I wonder if this is one of the clues - not necessarily the mission itself but the title "The Song of the Spheres"
Doing a quick google search comes up with :
https://en.wikipedia.org/wiki/Musica_universalis
"Musica universalis (lit. universal music, or music of the spheres) or Harmony of the Spheres is an ancient philosophical concept that regards proportions in the movements of celestial bodies—the Sun, Moon, and planets—as a form of musica (the Medieval Latin term for music). This "music" is not usually thought to be literally audible, but a harmonic and/or mathematical and/or religiousconcept. The idea continued to appeal to thinkers about music until the end of the Renaissance, influencing scholars of many kinds, including humanists."
I'm not sure if it helps but I thought I'd put it in here for reference.
Not to mention the Voyager (and whale) connection: http://adsabs.harvard.edu/full/2011IAUS..260..358P
Last edited: