They used simple special effects during Shakespearean performances, such as pounding drums to simulate thunder, bursting pouches of fake blood for sword wounds, and lowering or raising actors with winches for ghost appearances. Music was a big part of Elizabethan culture and entertainment. Shakespeare incorporated instruments like the viol, virginal, lute, and glittern into his plays, though he did not write the songs himself - composers like Thomas Morley and Robert Johnson wrote the songs for his plays. Music could be heard publicly in places like St. Paul's Cross in London and privately in the homes of wealthy individuals who employed musicians and singers.