I was listening to the Sirius XM sat radio on Sunday morning before church, and there had been several compositions in respect of the Feast of the Assumption on August 15th. Johan Georg Albrechtsberger wrote a beautiful mass, but the announcer mentioned this "Concerto": The bizarre stuff starts around 1:09
J.G.Albrechtsberger - concerto for jew' Harp , Madora and Orchestra in E Major 1 mov. - YouTube
J.G.Albrechtsberger - concerto for jew' Harp , Madora and Orchestra in E Major 1 mov. - YouTube