This is the 15546th most frequent German word.
vorspielen
"Vorspielen" means "to perform or play something (e.g., music or a role) in front of others."
In this sentence, 'vorspielen' means to play a piece of music in front of an audience.
Ich werde der Klasse heute ein Musikstück vorspielen.
I will play a piece of music for the class today.
Here, 'vorspielen' refers to performing (acting, or playing) something for an audience.
Er hat ihr etwas vorgespielt, das sie beeindruckte.
He performed something for her that impressed her.
In this use, 'vorspielen' involves the figurative context of pretending or acting deceitfully to someone.