<span>Experiments in which all variables are identical except for one are called controlled experiments. This where an observer tests his hypothesis by looking on changes that were brought about by one variable. The results are always dependent on one adjusted variable.</span>
Jelly Roll Morton was a brilliant solo pianist and also an prominent bandleader. He developed ragtime and instrumental blues into a new ensemble style which embraced collective polyphony, solo improvisations, and ever-changing textures and timbres.
Morton's piano style revolutionized jazz by adding sharp notes, flat notes, different sounding 5th and 6th of notes. He spread his influence by roaming around world and later by on recording. Jelly roll introduced new ways in jazz. He helped in showing the way to African American musicians and singers in recording industry.
Whereas, The Harlem Stride was a jazz piano style that emerged in large cities of the East Coast. It is regarded as the first step taken beyond ragtime that brought improvisation and rhythmic enjoyment to the living rooms, nightclubs and Harlem.
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Assuming that this is a Psychological Question.
Your friend's description is similar to others that report near-death experiences. Due to the fact that 15% of people that go into cardiac arrest are able to recall them.
Answer:
D. For as long as they fulfill their responsibilities.
Explanation: Hope that helps
It would be an example of meditation or calmness
