Warhawk,

It is hereby decreed by the High Countcil of Percussionists that it is suitable to substitute vibes for marimba in Qin Shi's Stone Army. The High Countcil has arrived at this conclusion due to the availability of an identical usable register and the lack of vibraphone specific techniques such as pedaling and dampening. The High Countcil wishes to express their gratitude for a request of their collective knowledge and your observance of the percussion timbre.

May your rim shots strike true.