Abstract: There is provided a musical instrument comprising a plurality of elongated tubular members operative to generate specific sounds when blown therethrough. Each instrument body also has two opposing sides having a first radially extending female connector and a second musical instrument male connector, whereby the plurality of tubular members may be maintained in a generally parallel axis assembly.

Abstract: Duplex pneumatic valves are provided for use in regulating the flow of air from a wind chest through an orifice to a pneumatic work chamber such as an organ pipe. The duplex valves comprise a principle valve having a rear surface and a seating surface seatable on the orifice and at least one venting channel in the principle valve means communicating with each of the seating and rear surfaces, thereof, and an initial valve having a seating surface seatable on the venting channel at the rear surface of the principle valve means. Methods for controlling the flow of air into, for example, an organ pipe are also disclosed employing the duplex pneumatic valves of this invention.

Abstract: This invention relates to pipe organs using tracker action and more particularly, to an improved such pipe organ having a separate wind-chest and sound-board fixed so that the air efflux from the valves of the wind-chest flows through flexible pipes and is delivered to the pipes supported on the sound-board.