Ricardo Ortega has a pipe organ project that began in 1980 and is still in work. Here's the specification:

• Two manual with pedal
• Manual 1 and 2 to pedal couplers
• Mechanical key and stop action
• Wind pressure is 2 inches of water
• Manual 1: 56 notes, CC-G3

8' 4' 2' III

Montre Prestant Doublette Mixture 1-2/3-1/2

Wood Wood Wood Wood

• Manual 2: 56 notes, CC-G3

8' 4' 2' 1 1/3' 4/5'

Bourdon Dulciana Flute Quint Tierce

Wood Pure lead Pipe metal Pipe metal

• Pedal: 30 notes, CCC-F

16'

Soubbass Bourdon

Wood