Key remapping for running windows on a mac. AutoHotKey on Windows side, Karabiner on Mac side.

AutoHotKey.ahk

; The below line is for debugging key presses in the key history.
; #InstallKeybdHook

; Turn my useless right alt key into a rad delete key
RAlt::Delete

; Capture the custom remapped playback keys from the mac keyboard remapper
<+<^F7::Send,{Media_Prev}
<+<^F8::Send,{Media_Play_Pause}
<+<^F9::Send,{Media_Next}

private.xml

<?xml version="1.0"?>
<root>
  <item>
    <name>Playback Controls to Ctrl+Shift+F(X)</name>
    <identifier>private.playback_to_function</identifier>
    <autogen>__ConsumerToKey__ ConsumerKeyCode::MUSIC_PREV, KeyCode::F7, ModifierFlag::CONTROL_L, ModifierFlag::SHIFT_L</autogen>
    <autogen>__ConsumerToKey__ ConsumerKeyCode::MUSIC_PLAY, KeyCode::F8, ModifierFlag::CONTROL_L, ModifierFlag::SHIFT_L</autogen>
    <autogen>__ConsumerToKey__ ConsumerKeyCode::MUSIC_NEXT, KeyCode::F9, ModifierFlag::CONTROL_L, ModifierFlag::SHIFT_L</autogen>
  </item>
  <!-- ============================================================ -->
</root>