Complex sentence: Beethoven's Broadwood grand, presented as a gift to him from the Broadwood company in 1817, had an una corda pedal and a split damper pedal--one half was the damper for the treble strings, the other was for the bass strings.
Split into simpler sentences: Beethoven's Broadwood grand, presented as a gift to him from the Broadwood company in 1817, had an una corda pedal, and a split damper pedal. One half was the damper for the treble strings, the other was for the bass strings.