Hitotzuki is a cool husband and wife artist team. The wife, Sasu, explains the process: they both stare at the wall until she starts to feel inspired about where to put her symbol. (The symbol looks like a mandala, but she claims she was not interested in Buddhism and mandalas until she started drawing concentric leaves because she didn’t know what else to draw.)
I love what she says about how her husband’s waves are the beat, and her symbol is the melody. It’s hard to imagine that these two don’t get along.