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A drum roll (or roll for short) is a technique used by percussionists to produce a sustained sound for the duration of a written note. [2]All drum figures are based upon three fundamental beats, technically called roll, single stroke, and flam...Sustentation is accomplished upon wind instruments by blowing into the instrument; it is accomplished upon the violin and the allied instruments by ...
Rolls: Diagonal lines across the note stem (or above a whole note). Usually three diagonal lines denote a roll, whereas fewer would be interpreted as measured subdivisions of the note (two lines for sixteenths, one for eighths). Open hi-hat: X notehead in the hi-hat part with small o above. Closed hi-hat: X notehead in the hi-hat part with + above.
A timpani roll (most commonly signaled in a score by tr or three slashes) is executed by striking the timpani at varying velocities; the speed of the strokes are determined by the pitch of the drum, with higher pitched timpani requiring a quicker roll than timpani tuned to a lower pitch.
For the Dies Irae, Berlioz requests 8 pairs of timpani, 2 of which have two players (for double-stop rolls). They are tuned for the diatonic notes of the E ♭ major scale, plus G ♭ and A ♮ . This permits a continuous and harmonious timpani roll starting a bar before rehearsal number 20 for 16 bars.
Sounds even and continuous. Also called a "buzz roll," "closed roll," or "press roll" (most often when referred to in the context of drum-set playing). Triple stroke roll Example of the drum rudiment triple stroke roll: Alternate-handed strokes with three specific strokes. Each stroke can be bounced or wristed. Also called a "French roll".
When tensioning a head, the tensioning rod closest to the tensioner should be tightened first. The reason for this is to keep an even tension across the drum head, which is impossible to do if the lugs are tightened differently. Next, the tension rod opposite the first lug is tightened by the same number of turns.
In an orchestral setting, the concert bass drum plays an integral role in the overall feel of a piece of music. In orchestral literature, the bass drum usually deals more with coloring and shading the sounds of the orchestra as opposed to providing a solid, rhythmic foundation like in marching band drumset.
Within a set of unpitched percussion instruments, there is commonly a sense of higher and lower pitch, for example: The smaller of a set of two timbales or bongo drums is tuned higher than the larger.