"Mr Kapellmeister Mozart hereby announces to the distinguished audience the publication of three new piano concertos. These 3 concerts, which can be performed with a large orchestra with wind instruments or only a Quattro, namely with 2 violins, 1 viola, and a violoncello, will not be performed until the beginning of April this year. J. (1783) come to light ...” This advertisement shows that Mozart wanted to keep the accompaniment apparatus flexible in the piano concertos KV 413-415 (and KV 449, as we know from a letter from Mozart to his father). In addition to the large orchestral scoring, a piece of pure chamber music scoring with simply scored strings is also possible.The edition takes this into account: on the one hand, it enables the performance of the works in the large orchestral sound form, but on the other hand, enriches the attractive group of works of chamber music with piano.