Key signature A minor as each accidental may be notated explicitly as required, or the piece may be modal or atonal. An example is Bartók's Piano Sonata, which has no fixed key and is highly chromatic. If not bound by common practice conventions, microtones can also be notated in a key signature; which microtonal symbols are used depends on the system. The common practice period conventions are so firmly established that some musical notation programs have been unable to show nonstandard key signatures until recently. The use of a one-flat signature developed in the Medieval period, but signatures with more than one
The Signature Series featured in the episode are mentioned. On SoundCloud, the pieces in each episode are timed such that when the piece changes, the pop-up comment identifies the piece being played, together with the composer who wrote the music. Each key has an image, with its name, its nickname, and a person (or animal, in the case of C minor) whose personality is representative of that key on it, except for C major, whose picture is that of the sky and the sea, with no people featured. Ben Didier of CBC music is the designer for the images. The Signature Series is