Unity SFX Manager is a Sound Manager for 2D sounds, like Background Music and Sound Effects, that uses a Scriptable Object based manager, meaning you don't need any instances of it on your scene.

You can clone this repository or add it to your project with Unity's Package Manager if you have git installed on your machine.

Somewhere in your project, right click and go to:

Create/Varollo/SFX Manager/New SFX Mananger

This will create a instance of the ScriptableSFXManager class. Inside it you can create multiple SFXTrack objects, and for each, multiple Sound objects.

To play a sound from a track you can call Play(trackName, soundName), or you can call with one single parameter Play(track_sound). track_sound being a string with the track name and sound name separated by a _ character. This means a tracks cannot be named with _ character. Sounds don't have that problem.

Once you call Play on that instance of the Manager, if not already, a new AudioSource will be instantiated in your scene for the playing track, and the sound parameters will be loaded into that AudioSource.

The created object is persistent between scenes, and will only be recreated if it ever get's destroyed.

You can also (if you choose) generate a C# class containing const string values for each song, inside a struct for each track. Just check the Generate Cs Class field in the inspector.

But WARNING: The generated class must be in the same folder as the scriptable object instance!

I am not supporting this that much, it's just a thing for me to use in multiple projects, but none the less, you can use it if you don't mind the lack of support from my side.

I also plan on making a custom editor for it in the future, but don't get your hopes to high.