Plasmagica hasn't performed enough concerts to play in the Grateful Rock Festival, and Aion's gloominess is causing problems with his bandmates.
That always-gloomy Aion was
1.6 times gloomier than usual?
كان أيون الكئيب ذاك دائمًا أكثر 
كآبة بمقدار 1.6 مرة من المعتاد؟