The lyrical theme of Moonface's With Siinai: Heartbreaking Bravery, recorded with Helsinki prog kraut rock band Siinai, is heartbreak. According to Krug, it was not planned, but became obvious halfway through the writing process. Some recently battered, still mildly swollen heart snuck its way into the first lyrics written, so he went with it. He wrote songs based on his own experiences with heartache, stories told to him by friends, and drummed up scenarios of ill-fated love that were absolute fiction.