Universal key fractions (e.g. an A natural in the scale above becomes ) or, more commonly in written text, by inserting an accidental before the number (e.g. the same note becomes 5 or 4). In music theory aimed towards jazz and popular music, all triads are represented by upper case numerals, followed by a symbol to indicate if it is not a major chord (e.g. "m" for minor or "ø" for half-diminished): When representing the triads rooted in a minor key, accidentals are used to indicate the chromatic alteration from the assumed major key roots indicated by numerals that don't have accidentals:
Stopped note Stopped note On string instruments, a stopped note is a note whose pitch has been altered from the pitch of the open string by the player's left hand pressing (stopping) the string against the fingerboard. On bowed string instruments, a stopped note is a played note that is fingered with the left hand, i.e. not an open string. This assists with tone production, the addition of vibrato, and sometimes additional volume but creates difficulty in that bowed string instruments do not have frets, requiring ear training and accurate finger placement. The lack of frets, as on the guitar fretboard, does