Hans Edler was born in Frankfurt Germany in 1889. He was a third generation violin maker. His grandfather Friedrich Christian Edler (I) founded the family firm in Frankfurt in 1850. Friedrich Christian (I) won diplomas for his violins in exhibitions. Han's father Friedrich Christan (II) was also a violin maker.
Hans Edler trained with several well regarded and innovative violin makers. Hans started his initial training with his brother Friedrich Christian Edler (III) who was 13 years older. Friedrich Christian (III) invented the original T shaped bass bar along with techniques to improve the sound post. Hans then spent time training with Johann Josep Held whose violins are noted to be expertly crafted. JJ Held found a way to modify the bass bar to improve the tone of an instrument. In 1907, Hans started working as Adolf Romer’s assistant in Freiburg. Romer’s work is highly regarded by connoisseurs as much scientific thought went into his copies of well known Italian models,
Hans Edler’s violins were made between 1919 and 1954 with a short interval from his work as a luthier due to military service in the First World War. He began working with Guiseppe Fiorini in Munich in 1911. He was the last of Fiorini's students. Working for Fiorini gave him the opportunity to perfect all aspects of his craft. As a luthier, Hans took a great deal of care with the repair of old instruments and the making of new ones. During his time with Fiorini, Hans rapidly gained an excellent reputation and this allowed him to establish his own independent workshop in Munich in 1919 where he worked until World War Two. In 1954, he was awarded a diploma of honour at Liège.
Hans Edler was a founding member of the The Entente Internationale des Luthiers et Archetiers- the International Association of Violin and Bow Makers. He was also the secretary of the Bavarian Association of music instrument makers.
Edler described his personal model as being based on his "own principles of design" however the proportions correspond very closely to the Stradivari template. He personally owned a significant collection of fine old instruments and as such was also known to make copies of a number of these.
Hans Edler was a connoisseur of old instruments and with his knowledge, he edited the 5th edition of Albert Fuchs book "Taxe der Streich Instrumente" - a guide on how to value string instruments.
Consistent with the training of his youth, Hans was also acclaimed for his ability to improve the sound of tired old instruments that were thought to be worn out.