* The song "3recurring" from [[Plaid]] on their album ''[[Rest Proof Clockwork]]'' contains the recurring 3s represented as a logo on the cover of the "Not for Threes" album.
* A potentiallydeliberately leaked MP3 version of "My Violent Heart" from the upcomingthen unreleased [[Nine Inch Nails]] album ''[[Year Zero (album)|Year Zero]]'' contains a few brief moments of static at the end, which when analyzed in a spectrogram, reveals the image of a hand reaching down from the sky. This image echoes a similar theme seen throughout the [[viral marketing]] campaign launched for the album. Another new Nine Inch Nails track from Year Zero (April 17th) has been found on a flash drive in a bathroom stall on their current European tour. This time it's "Me, I'm Not." Along with the song, was an MP3 of cricket chirping, which when put through a spectrogram revealed the number: 216.333.1810.
Some modern music is also created using spectrograms as an intermediate medium; changing the intensity of different frequencies over time, or even creating new ones, by drawing them and then inverse transforming.
