You can usually do this with one phone call or email. Contact one of the soloists or ensembles on the list and ask for their help to provide music for your event.
Pricing should be discussed in advance directly with the musician(s), as they set their own rates and schedules. Fees typically range from $150 to $250 an hour, per musician, plus travel expenses. Some instrument types will be more costly to hire, such as harp, due to the logistics of moving the instrument and extra time for tuning and set up. However, fees are always negotiable on a one-on-one basis.
Please contact your desired musicians directly to book them for your event. Please be ready to supply the musician with the following event information: date, time, location, type of event, dress code, and theme.