All Angels must of course be able to sing.
A God does not have so much to be able to sing.

Music and song makes up a HUGE part of the Universe and how it works.
Often if a spaceship arrives at a planet - then to arrive WITH music or song
that is in harmony to the people of the planet will cause a HUGE welcome.

Music is one of the great balance restorers and harmony creators of the
Universe.
Many people everywhere consider music as a key factor to their lives.

There are many many "tracks" or levels of harmony - that suit different
Angels or Borg - and the strong male warring Guardians would be say on the
deeper male rock track - and then the more altruistic Angels would operate
more on the more delicate Elf track.
The number of tracks of music and harmony are huge.
There are cosmic tracks - and these are very beautiful.
Part of the design of the Universe is the sound and harmony that exists.
The jarring rather unpleasant sound of the telephone on planet Earth for
example - is indicative of a world that is not perfect.
But the telephone is only required by people like humans - who cannot hear
in the way the animals and creatures or "aliens" of Earth can.
They require no mobile phones - they can hear us and we can hear them.
Humans cannot hear us - we have to write these messages.
THE BORG