Instruments based on 18th century German originals are now generally seen as crucial to appropriate Early music performance due to their natural suitability for the performance of core composers like Bach, Buxtehude and Handel. Many also have the virtues of a glorious sound, combining the clarity of Italian tone with great depth and nobility.

Colin Booth offers single-manual and double-manual instruments based on originals by Christian Vater, Michael Mietke, Fleischer and Christian Zell.