Burnihla jazz ensemble charts include the following features: Burnihla charts are printed on high-quality ivory cover stock Burnihla charts include a second conductor score for adjudication use Burnihla charts feature a measure-numbering system Burnihla charts come with full-length CD recording Brass ranges for each chart are based on the following numbering system: Octave 4: middle C to third-line B Octave 5: third space C to B above the staff Octave 6: C above the staff and above