Grand Piano P 284 MISTRAL - The Petrof piano company was founded in 1864 by Antonin Petrof, a Czech piano maker. The company still exists today and produces high-quality pianos used by professionals. The piano on this picture is the grand piano P 284 Mistral, which is part of the Petrof master grand piano series. This series features top instruments for concert halls which take roughly nine months each to produce by the company's most experienced employees. The P 284 Mistral concert grand piano is one of the best produced, which, thanks to the builders' expertise, is suitable for the hardest and most demanding pieces.