- Patchwerk vocal production services offer assistance to vocalists who are soloists, in small groups, or even large groups like choirs or choruses. The service helps vocalists explore harmonies, create harmonies, clarify their vision, trim unnecessary ideas from a song, adjust the weight or style of harmonies, and provide guidance on completing verses or addressing vocal issues. The goal is to enhance the quality and sound of the vocals to make them stand out and sound superior.