Branch Retinal Artery Occlusion - Pathophysiology. 1  Most commonly, a branch retinal artery occlusion occurs secondary to an embolus. Emboli typically originate within vessels upstream where they dislodge and travel within the circulatory system to ultimately become lodged downstream in a vessel with a smaller lumen.
Ragtime is a musical form or style that is defined as a syncopated melody (usually in 2/4 time) over a regular, march tempo bass line. Improvisation was common but little of that aspect has been preserved.
Ragtime was essentially a piano music Ragtime was a music which descended from the cakewalk Ragtime music was hard, bright, cheerful and machine-like. Additional characteristics. The music was white (or European) in essence, although most of its practitioners were black Ragtime was a composed music Ragtime pieces were conceived as pieces capable of standing alone; embellishments and improvisation were superfluous and not usually permitted It was desirable to play a piece the same way every time Ragtime was a printed music Its orientation was towards classical concert music Circus psychology was predominant; the tendency was toward faster tempos and sensational technical exploits The performance goal of ragtime was the successful realization of a predictable result It was characterized by an emulation of white techniques, which seems to belie the instinctual character of American Negro music