Autograph in the context of Max Reger

Frédéric Chopin wrote a number of preludes for piano solo. His cycle of 24 Preludes, Op. 28, covers all major and minor keys. In addition, Chopin wrote three other preludes: a prelude in C♯ minor, Op. 45; a piece in A♭ major from 1834; and an unfinished piece in E♭ minor. These are sometimes referred to as Nos. 25, 26, and 27, respectively.

A signature (/ˈsɪɡnɪtʃər, ˈsɪɡnətʃər/; from Latin: signare, "to sign") is a depiction of someone's name, nickname, or even a simple "X" or other mark that a person writes on documents as a proof of identity and intent. Signatures are often, but not always, handwritten or stylized. The writer of a signature is a signatory or signer. Similar to a handwritten signature, a signature work describes the work as readily identifying its creator. A signature may be confused with an autograph, which is chiefly an artistic signature. This can lead to confusion when people have both an autograph and signature and as such some people in the public eye keep their signatures private whilst fully publishing their autograph.

An autograph or holograph is a manuscript or document written in its author's or composer's hand. The meaning of "autograph" as a document penned entirely by the author of its content (as opposed to a typeset document or one written by a copyist or scribe other than the author) overlaps with that of "holograph".

Autograph manuscripts are studied by scholars (such as historians and paleographers), and can become collectable objects. Holographic documents have, in some jurisdictions, a specific legal standing.

Music manuscripts are handwritten sources of music. Generally speaking, they can be written on paper or parchment. If the manuscript contains the composer's handwriting it is called an autograph. Music manuscripts can contain musical notation as well as texts and images. There exists a wide variety of types from sketches and fragments, to compositional scores and presentation copies of musical works.