The technique of gradually changing dynamic levels was developed by the Mannheim symphonists.
The Mannheim school were composers whom were under the guidance of Duke Karl Theodor. They were good in their instrumental music, and they introduced several innovative ideas for the orchestral music.
Some of the composers in the school were Johann Stamitz, Christian Cannabich, Franz Xaver Richter, Carl Stamitz, etc
Strumming eighth notes requires a steady up and down motion of the strumming hand. The downstroke should occur on the beat and the upstroke should occur on the 'and'.
The Ewe are known for their experience in drumming throughout West Africa. The sophisticated cross rhythms and polyrhythms in Ewe drumming are similar to those in Afro-Caribbean music and late jazz.
