Yes, any live music is an additional cost... ceremony prices range from $300 for one hour to $550 for one hour, this was like guitar trio, mariachi, sax, guitar, flute, etc...
Bands for the reception ran anywhere from $800 per hour with minimum of 3 hours... to $1200 an hour min 3 hours. DJs seemed to be about $300 an hour min of 3 hours. Hope that helps. We went with a live band and the cost was $5,000 for 4 hour set, but we are huge music junkies-this was extremely important to us.