An alternative to enums. This is a response to this post: http://www.gamasutra.com/view/feature/193616/advanced_audio_streaming_in_unity.php?page=3

AudioClipType.cs

using System;
using System.Collections.Generic;

public class AudioClipType
{
	static public List<AudioClipType> allAudioClipTypes = new List<AudioClipType>();

	static public AudioClipType SnakeEat = new AudioClipType("snake_eat","wav",1.0f);
	static public AudioClipType UIPress = new AudioClipType("ui_press","wav",1.0f);
	static public AudioClipType Explosion = new AudioClipType("explosion","wav",1.0f);
	static public AudioClipType GameOver = new AudioClipType("game_over","wav",1.0f);
	static public AudioClipType LevelUp = new AudioClipType("level_up","wav",1.0f);
	static public AudioClipType StartGame = new AudioClipType("start_game","wav",1.0f);
	static public AudioClipType PauseClick = new AudioClipType("pause_click","wav",1.0f);
	static public AudioClipType PlayButton = new AudioClipType("play_button","ogg",1.0f)

	public string name;
	public string fileType;
	public float volume;
	public int priority;

	public AudioClipType(string name, string fileType, float volume)
	{
		this.name = name;
		this.fileType = fileType;
		this.volume = volume;
		this.priority = allAudioClipTypes.Count;
        
		allAudioClipTypes.Add(this);
	}
}