.... and you don't need to worry about the tolerances or temps, most film caps are 5% if kept within normal operating temperatures.Some ceramic capacitors are "microphonic" and produce noises in high gain audio circuits.
Some ceramic capacitors change their value when the voltage changes which causes low frequency distortion in audio circuits.
Use metalized plastic film capacitors for coupling and filtering audio.
by Jake Hertz
by Aaron Carman
by Duane Benson
by Aaron Carman