2. 外语
  3. We are rapidly near the end of this course in the history of【B1】______ music. We have covered several centuries in a very short

We are rapidly near the end of this course in the history of【B1】______ music. We have covered several centuries in a very short

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问题     We are rapidly near the end of this course in the history of【B1】______ music. We have covered several centuries in a very short time. Much too short to do the music【B2】______ , of course, but then this year is the【B3】______ course. From now until the end of the term, we’ll be talking about and listening to  【B4】______ music. You probably already know that it was in the 1950’s that musical【B5】______ and synthesizers first appeared in university. The first【B6】______  synthesizers were sold about this time too. The【B7】______ and complexity of these【B8】______ have now increased to the point they can produce almost any kind of sound.  【B9】______ . You know I don’t share this view, but I do agree we are in the midst of a ;evolution in instrument design.【B10】______ .Remember we’ve already studied a similar case in the early nineteenth century when the piano replaced the harpsichord and modem brass and wind instruments came into being.【B11】______ . Well, just look at it. Only about 400 dollars for an electronic keyboard to nearly 3,000 dollars for a piano. Naturally, this has done a lot of increase sales of electronic instruments. But I don’t think even the most ardent supporters of electronic instruments expect them to completely replace acoustic instruments.
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