Humble Grumble started in 1996 as a project by Gabor Voros and Tom Theuns. .
The band was continued by Gabor Voros and has had various line-ups of folk and jazz musicicans of Dearest Companion, a belgian flip-folk group. The early music had more in common with folk-rock than jazz, but was always flavored with an excentric touch of humor. The early work of Humble Grumble was mainly composed by Gabor Grumble and Tom Theuns,is said to sound Zappa-esque.