Well,'mixed by erry based on a true story' might be about a musical composition. Maybe Erry is a DJ or a music producer who took elements from a real - life story and incorporated them into the music while mixing it. For example, the story could be about a historical event, a personal experience, or a cultural phenomenon, and Erry used sounds, melodies, or lyrics to represent that story in the music.
This phrase'mixed by erry based on a true story' is rather ambiguous. It could be a movie as well. Suppose Erry is a filmmaker who decides to make a movie. He bases the plot on a true story, and during the post - production, he'mixes' different elements like footage, audio, and special effects in a unique way. The 'true story' could be anything from a heroic rescue to a love story that actually happened, and Erry uses his creative skills to bring it to life in a new form.