Joseph Haydn's Symphony 'A' in B♭ major, Hoboken I/107, was written between 1757 and 1760. It is not in the usual numbering scheme for Haydn symphonies because it was originally thought to be a string quartet (Op. 1/5) and was catalogued as Hob. III/5.

Date of composition 1760 (? 1757-1761)
Type Symphony
Tonality B-flat Major
Catalogue Hob. I:107
Approx. duration 15 minutes
Instruments Orchestra
Autotranslations beta Joseph Haydn: Symphony A en si bémol majeur, Hob. I:107 "Sinfonia No.107"
Franz Joseph Haydn: Symphony A in si bemolle maggiore, Hob. I:107 "Sinfonia No.107"
Joseph Haydn: Symphony A B-dur, Hob. I:107 "Sinfonia No.107"