Key signature sometimes called "standard key signatures". Other scales are written either with a standard key signature and use accidental as required, or with a nonstandard key signature. Examples of the latter include the E (right hand), and F and G (left hand) used for the E diminished (E octatonic) scale in Bartók's "Crossed Hands" (no. 99, vol. 4, "Mikrokosmos"), or the B, E and F used for the D Phrygian dominant scale in Frederic Rzewski's "God to a Hungry Child". The absence of a key signature does not always mean that the music is in the key of C major /
The Signature Series divided into 2 seasons: Season 1 and Season 2. In Season 1, when each episode was published online at CBC Music, the information about each key consisted of the notes in that key (the harmonic minor scale is always mentioned, not the natural minor), its relative major or minor, the number of sharps or flats in its key signature, the key's other nicknames, a list of fictional and real life characters representative of the key, and a couple of quotes about the key. In Season 2, the information about each key is replaced by the key's main traits, biggest strength,