Sundqvist kept himself almost completely hidden from publicity and Leevi and the Leavings never performed in front of a live audience, with only one exception under the name "Tarmo Dynamo".

His subjects covered loneliness, sexuality, alcoholism, mental health, environment and society, often with sarcasm and black humour.

He wrote several humorous shows for the radio station formerly known as Radiomafia, including Tietokoneenkorjauskurssi ("Computer repair course") and Koe-eläinpuisto ("Laboratory animal park").

[3] Gösta Sundqvist died abruptly from a heart attack at his home in Espoo on August 16, 2003, at only 46 years old.

[1] Only hours before his death, he was in a studio recording a new version of a Leavings song meant to appear on their next single.