Sackbut modern orchestra sounds out of tune, but it tunes perfectly well on in a sackbut choir if everyone plays natural harmonics. Plenty of musical understanding can be gathered from reading the original music print. Publishers such as SPES and Arnaldo Forni Edition provide facsimile copies of plenty of music for trombone from this era. To read these it one needs to become familiar with the old clefs, time signatures, ligatures and notational conventions of the era. The sound of sackbuts (and trombones) has long been thought especially solemn and noble, had an association with death and the afterlife. The instrument
Recorder (musical instrument) In recorders, like in all woodwind instruments, the air column inside the instrument behaves like a vibrating string, to use a musical analogy, and has multiple modes of vibration. These waves produced inside the instrument are not longitudinal waves, like those the ear perceives as sound, but rather stationary standing waves consisting of areas of high pressure and low pressure inside the tube, called nodes. The perceived pitch is the lowest, and typically loudest, mode of vibration in the air column. The other pitches are "harmonics", or "overtones". Players typically describe recorder pitches by the number of nodes in the