The noun 'ragtime' is a common noun, a general word for a style of music.
A proper noun is the name of a specific person, place, or thing; for example, the song "Ragtime Cowboy Joe" (c.1912) or the movie "Ragtime" (1981).
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
proper
Common
common
It is a proper noun, because it is the name of a specific thing.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
proper
Ragtime MUSIC. :)
Ragtime - I - was created in 1960.
The name ragtime came from the syncopated, or "ragged" rhythms that occur in ragtime music.
Common
Ragtime.
common and proper
common
The Ragtime Dance was created in 1902.
Ragtime - novel - was created in 1975.
Ragtime - musical - was created in 1998.