Is it possible to load sound / music async? Like a promise.

[fateriddle 3]

1. Since you can load meshes using ImportMeshAsync to return a promise, I wonder if it is possible to do the same for sound?
I'm trying to do

Promise.all([ loadAsset1, loadAsset2, loadSound, loadMusic ]).then( ... )

2. Also It seems 360 photo dome and video also needs loading time, can you turn them into promise too? 

[Deltakosh 4315]

What about doing a PR? This could help the entire community

And btw all loads are already asynchronous (that's the inner nature of the XHR). For isntance the sound constructor provides a readyToPlayCallback so it should not be a big deal to add a helper function on Sound class to load a sound and return a promise