Survey marketing for electronic music company

Hello! Currently we are promoting a competition where we are giving away a prize in return for filling out a survey for our wesite. The aim of the survey is to get a better idea of which services our site offers, that are most useful to our customers. We are looking for someone to do promotion for the survey and get us more entries. The competition runs until the 31st of may. We would hope to get 400 - 500 sign ups between now and then. The website we are promoting is an electronic music website. It is based around the sale of electronic music and supporting independent musicians. We would prefer if each bidder had some knowledge of electronic music before considering taking the job. Thanks very much! Adam.