Orlando Gibbons : Fantasies
Since English organs of the 16th and early 17th centuries were normally pitched high with the bottom note C playing a 5ft pipe - sounding approximately G at modern pitch - it would seem that most music written specifically for organ at the period should be transposed up. From the beginning of the 17th century larger organs were built with C at 10ft pitch and music apparently intended to be played at that pitch should be transposed down.
My transcriptions of this music as played below may be downloaded here.