Tonic
The tonic is the "home note" of a scale or of a piece of music that's in a key, or a note of resolution in modal music.
In Arabic music, this is usually conceptualized as the first note of a maqamMaqam (pl. maqamat) is the modal melodic system used in the Arab worldVisit the link to learn more scale, although Arabic music changes tonal centers, so that different notes within the scale can be tonicized (made into a tonic through melodic motion). When the tonic changes, the new tonic is the tonal center of a new jinsJins (pl. ajnas): a scale fragment of 3, 4, or 5 notes with a specific mood and melodic vocabulary.Visit the link to learn more.
Context
A Guide to the Maqam Tuning Presets for Ableton Live 12