David, the linked Pachelbel Canon would be a good choice for processional music and a fine performance is found on MP3 sample 10. here . The beautiful and elegant music from Bach's Arioso(sample 6.)might be an even nicer choice. Among the possibilities for recessional music would be the Hornpipe from Handel's Water Music(sample 1.).

Hope they don't play it on Bose, but to make sure you can bring your Axioms along.

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Enjoy the music, not the equipment.