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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
Sharps are one semitone higher (the very next note up, generally a black key except for e sharp and b sharp), and flats are one semitone lower (the very next note down; generally a black key except for f flat and c flat).
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