I should probably know this by now, but: If a power says to do several things in a row and the card is destroyed halfway through, does the power terminate at that point or does the power finish resolving?
Example: Argent Adept has Cedistic Dissonant and Musaragni’s Harp in play. Normally the Harp would let me use Harmony’s Perform text, and then use a Harmony’s Accompany text. If I Perform Cedistic Dissonant, it destroys an instrument card. Musaragni’s Harp is destroyed, so at that point do I finish the power by playing an Accompany, or does the power stop halfway through because the card is gone?