Jacks on the Rocks (Madrid): Local Business 21 Calle Eduardo Requenas Madrid, Comunidad de Madrid 28053 ES +34-914-78-30-00 http://www.jacksontheroc ... Jacks on the Rocks: Musician comprehensive service is the ideal solution for musicians and artists to train, rehearse, perform, record and promote their facilities without leaving platform. Read More Jacks on the Rocks: Musician comprehensive service is the ideal solution for musicians and artists to train, rehearse, perform, record and promote their facilities without leaving platform.