I composed some battle music for an RPG, and out of curiosity, I wanted to see how it worked in the context of Towerfall. But anytime I try importing it, I get this error:

Ver 1.3.3.1
12/30/2016 1:05:35 PM
Debug Flags: 0000 - 0
System.ArgumentException: Ensure that the specified stream contains valid PCM mono or stereo wave data.
at Microsoft.Xna.Framework.Audio.WavFile..ctor(Stream source)
at Microsoft.Xna.Framework.Audio.WavFile.Open(Stream stream)
at Microsoft.Xna.Framework.Audio.SoundEffect..ctor(Stream stream)
at Microsoft.Xna.Framework.Audio.SoundEffect.FromStream(Stream stream)
at TowerFall.Editor.CustomData.StringToSounds(String data, SoundEffect& effect, SoundEffectInstance& instance)
at TowerFall.Editor.EditorScene.RefreshMusic()
at TowerFall.Editor.OverlayScene.<>c__DisplayClass32_0.<InitModeMusic>b__0()
at TowerFall.Editor.OverlayTextButton.OnMouseClick(Vector2 localPosition)
at TowerFall.Editor.EditorBase.Update()
at TowerFall.Editor.OverlayScene.Update()
at Monocle.Engine.Update(GameTime gameTime)
at TowerFall.TFGame.Update(GameTime gameTime)
at Microsoft.Xna.Framework.Game.Tick()
at Microsoft.Xna.Framework.Game.HostIdle(Object sender, EventArgs e)
at Microsoft.Xna.Framework.GameHost.OnIdle()
at Microsoft.Xna.Framework.WindowsGameHost.RunOneFrame()
at Microsoft.Xna.Framework.WindowsGameHost.ApplicationIdle(Object sender, EventArgs e)
at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FDoIdle(Int32 grfidlef)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at Microsoft.Xna.Framework.WindowsGameHost.Run()
at Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
at TowerFall.TFGame.Main(String[] args)

To my knowledge, it's 44.1 KHz stereo WAV format, so it should be fine. Am I missing something? Googling the issue turns up nothing, so I must be the first person to ever get this error I guess.