Complex sentence: Gould was shocked by this, and complained of aching, lack of coordination, and fatigue because of the incident; he even went on to explore the possibility of litigation against Steinway & Sons if his apparent injuries were permanent.
Split into simpler sentences: Gould was shocked by this, and complained of aching, lack of coordination, and fatigue because of the incident. He went on to explore the possibility of litigation against Steinway & Sons if his apparent injuries were permanent.