1 Jazz, country music, rock, and hip pop have become a fixed part of many countries, leading to local varieties like Russian rock and Australian country music.
2 Rock has had an influence on popular music, transforming the very concept of what popular music is.
请问老师:
1 以上两个句子的现在分词短语都是做状语吗?
2 leading的逻辑主语看不太懂;transforming的逻辑主语是Rock吗?