Why did composers prefer to create music for the organ?

Composers favored creating music for the organ primarily because it produces complex melodies, tones, and pitches. The organ's unique construction allows for the combination of multiple sets of pipes and stops, enabling intricate textures and harmonic richness not easily achievable by other instruments. This capability allowed composers to explore a wide range of musical ideas, including elaborate counterpoint and polyphony.

The organ can sustain notes for longer durations, which supports more elaborate compositional techniques and emotional expression. Its ability to produce various tonal colors and dynamics also made it a versatile instrument, suited for both sacred and secular music contexts. This complexity and richness of sound made the organ a preferred choice in many musical settings during its peak popularity.