Specialise in handmade custom bass strings for pianos, upright pianos and dulcimers. I use copper wires from Adolf Edelhoff GmbH & CO. KG, Marke Degen and steel wires from Stahl-und Drahtwerk Röslau.

Repair and manufacture of organ manuals, keyboards for pianos and concert grand pianos. Sale of spruce resonance (resonance wood) and fretwork. We specialise mainly in the custom manufacture of small batches and original piece keyboards to client specifications.

Sales, service, reconstruction, repairs, refurbishment of pianos, upright and grand pianos, sales of new pianos and grand pianos, supplies and equipment for orchestras, elementary art schools, 2D printers for 3D printing for art.

We provide online sales of musical instruments. We offer pianos and accessories, recorders, guitars, combos, speakers, lighting or microphones. You can also find here accessories for orchestras such as stands or chairs.

You can visit our state-of-the-art piano showroom that we have built for you. Check out our beautiful pianos and upright pianos that we have been lovingly creating for 5 generations. The unique acoustic design of the entire PETROF Gallery space ensures that you will hear even the smallest nuance of the sound of our pianos.

We provide complete refurbishment of pianos of all brands, including transport and moving of these instruments. We offer tuning, intonation, removal of minor mechanical defects, complete refurbishment and refinishing. We sell reconditioned and refurbished pianos and uprights.