The Digital Revolution: 1971...  -- continued The First Digital Musical Instrument Installed in 1971 in St. Andrew's Evangelical Lutheran Church of Easton, Pennsylvania, this was the second available consumer digital product and was the world's first digital music instrument. The church replaced this instrument with a larger Allen in 1994. After 23 years of constant use, this Allen organ is still in perfect shape. From Math to Music An enlargement of the ad for the new Allen Computer Organ, the first musical instrument to create precise harmonic structures. CLICK HERE TO CONTINUE