You invoke shelter from ice and snow.
Cost: Feat or 4th-level bard spell known.
Effect: This masterpiece can be performed only at or after dusk, or in weather conditions stormy enough to affect visibility. When completed, this masterpiece conjures a frozen shelter. This acts as the hemisphere form of wall of ice centered on you, except that the radius is 20 feet, the hemisphere has a single doorway large enough for a Medium creature, and the shelter lasts until the next sunrise or until you leave the shelter.
Use: 5 rounds of bardic performance.
Action: 5 full rounds.