Another great version of Mood Indigo is this one by Charles Mingus:
By all accounts Mingus was a moody bastard but the bass playing blows my mind every time I listen to this album. (II B.S. is another killer cut.) The way it weaves around, supporting the melody yet dextrously moving up and down the fretless neck of the double bass.
Once I looped those opening piano chords and they reminded me of something from a Bond soundtrack.