The phenomenon of pure bliss one experiences at the culmination of a musical arrangement or ensemble (e.g.,
track).
Please note that "eargasm" is not analogous with the "drop." While a drop may at times constitute an eargasm, an eargasm differs from individual to individual, and thus is dependent upon one's personal taste and preference in music – I'm sure Beethoven had an eargasm or two even after losing his sense of hearing. Some examples from (my) recent years are as follows (agree to disagree):
01:
24 – M83, "
Midnight City" (Eric Prydz Very Private Mix)
03:35 – Interpol, "Lights"