In the 90s and early 2000s, Casio utilized PCM technology. This meant that the drum sounds were actual recordings (samples) of real drums, rather than synthesized blips. The rhythms became more realistic, but the "intelligence" was still somewhat limited. The accompaniment often sounded repetitive, looping the same four bars regardless of the song's progression.
"The drums sound quiet."
, offer hundreds of built-in rhythms. These are no longer just drum loops; they are complex arrangements consisting of: Drums and Percussion: The foundational beat using high-quality AHL or AiX sound sources Auto Accompaniment: casio keyboard rhythms