Has it been longer than a year since your piano was tuned? Piano tuning varies due to the condition of the piano but the ballpark will be $100-200. All pianos should be serviced at least annually to ensure ease of use and optimum sound quality as well as protecting your family's heirloom. $100 is the price of the service call to determine what if anything needs to be done to the piano. If you decide to have the piano serviced, all $100 will be applied to the work done.