A publication, usually in e-book or digital format, gives valuation estimates for beforehand owned musical devices. These sources collate gross sales knowledge and professional evaluation to current a spread of potential values based mostly on numerous elements like model, mannequin, situation, and age. For instance, a potential purchaser may seek the advice of such a information to find out a good worth for a Steinway grand piano manufactured in 1980, contemplating its bodily state and any crucial repairs.
The significance of consulting such a useful resource lies in establishing a practical market worth, making certain honest transactions between consumers and sellers. Traditionally, these guides had been bodily books distributed to retailers and technicians. The rise of digital databases has broadened entry and offered extra real-time updates reflecting shifting market traits and elevated availability of gross sales data. This improved entry helps stop overpayment and ensures sellers obtain equitable compensation for his or her devices.