His own scientific investigations
It can physically show the sum difference between 2 comparisons
The piano is a great instrument because of how easy it is to pick up on it. Unlike other instruments like the violin, or the guitar, you always know what you are going to get when you attempt a note. It also sounds amazing to the ear and is very relaxing to the ear.
Answer:
Roman music was less concerned with the ratios of melody and harmony than the Greeks were. In fact, most Roman music has been said to be far less creative or complex when compared to Greek, often utilizing only a single instrument playing a melody, without any harmony.
Explanation: