In Lady Gaga's song featuring Elton John "Sine From Above", she sang that she has heard a "sine" from the sky. Sine is defined as the very famous mathematical function in Cambridge dictionary. There do not seem to be other senses.
The lyrics are:
I heard one sine from above.
Then the signal split in two.
The sound created stars like me and you.
Before there was up, there was silence.
I heard one sine
And it healed my heart, heard a sine.
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She sings she heard "one sine" from above. Does she mean she heard a sound (signal) (which can be transformed with Fourier's decomposition with sums of cosines and sines?)
Is it common for English speakers to confound a sine and a sound? Can I do the symmetric thing and say that "I heard a cosine" ?
Maybe there is also something linked to a "signal" which is similar so "sine" for the pronunciation?