A multi-layer glass panel comprising: a first glass substrate; a second glass substrate; a multilayer interlayer comprising a first polymer layer and a second polymer layer in contact with said first polymer layer; wherein said first polymer layer and said second polymer layer comprise plasticized poly(vinyl butyral); wherein said multilayer interlayer comprises a third polymer layer in contact with said second polymer layer, wherein said third polymer layer comprises plasticized poly(vinyl butyral) and wherein said second polymer layer is between said first and said third polymer layers; wherein said multilayer interlayer is disposed between said first and second glass substrates; wherein said first polymer layer has a glass transition temperature of greater than 33°C; and said second polymer layer has a glass transition temperature less than 30°C, and said third polymer layer has a glass transition temperature of greater than 33°C; and wherein the multilayer interlayer has an equivalent glass transition temperature, T eq, of greater than or equal to 29°C; and wherein the combined thickness of said first glass substrate and said second glass substrate is less than or equal to 4.0 mm, and wherein the thickness of said second glass substrate is less than the thickness of said first glass substrate; wherein the glass transition temperature and the equivalent glass transition temperature are measured according to the method in the description. a first glass substrate; a second glass substrate; a multilayer interlayer comprising a first polymer layer and a second polymer layer in contact with said first polymer layer; wherein said first polymer layer and said second polymer layer comprise plasticized poly(vinyl butyral); wherein said multilayer interlayer comprises a third polymer layer in contact with said second polymer layer, wherein said third polymer layer comprises plasticized poly(vinyl butyral) and wherein said second polymer layer is between said first and said third polymer layers; wherein said multilayer interlayer is disposed between said first and second glass substrates; wherein said first polymer layer has a glass transition temperature of greater than 33°C; a multilayer interlayer comprising a first polymer layer and a second polymer layer in contact with said first polymer layer; wherein said first polymer layer and said second polymer layer comprise plasticized poly(vinyl butyral); wherein said multilayer interlayer comprises a third polymer layer in contact with said second polymer layer, wherein said third polymer layer comprises plasticized poly(vinyl butyral) and wherein said second polymer layer is between said first and said third polymer layers; wherein said multilayer interlayer is disposed between said first and second glass substrates; wherein said first polymer layer has a glass transition temperature of greater than 33°C; and said second polymer layer has a glass transition temperature less than 30°C, and said third polymer layer has a glass transition temperature of greater than 33°C; and wherein the multilayer interlayer has an equivalent glass transition temperature, T eq, of greater than or equal to 29°C; and wherein the combined thickness of said first glass substrate and said second glass substrate is less than or equal to 4.0 mm, and wherein the thickness of said second glass substrate is less than the thickness of said first glass substrate; wherein the glass transition temperature and the equivalent glass transition temperature are measured according to the method in the description. and wherein the multilayer interlayer has an equivalent glass transition temperature, T eq, of greater than or equal to 29°C; and wherein the combined thickness of said first glass substrate and said second glass substrate is less than or equal to 4.0 mm, and wherein the thickness of said second glass substrate is less than the thickness of said first glass substrate; wherein the glass transition temperature and the equivalent glass transition temperature are measured according to the method in the description.