1. A database constructing apparatus comprising: a storage device storing a database that registers names of a plurality of music pieces, each name in association with at least one word representing an impression of the associated name of the respective music piece, the words being used as search words when any of the names of the music pieces is to be searched for; and a processor programmed to: connect to a communication network to access any one of a plurality of sites on the communication network and collect, from among text information being provided by the accessed site, a word usable as a music-piece-related search word in association with a name of a particular music piece, without collecting the particular music piece; and register the collected word in association with the name of the particular music piece, into the database.
1. A database constructing apparatus comprising: a storage device storing a database that registers names of a plurality of music pieces, each name in association with at least one word representing an impression of the associated name of the respective music piece, the words being used as search words when any of the names of the music pieces is to be searched for; and a processor programmed to: connect to a communication network to access any one of a plurality of sites on the communication network and collect, from among text information being provided by the accessed site, a word usable as a music-piece-related search word in association with a name of a particular music piece, without collecting the particular music piece; and register the collected word in association with the name of the particular music piece, into the database. 3. The database constructing apparatus as claimed in claim 1 , wherein: the list registered in the database has a plurality of search items for classifying genre by genre words representing impressions of music pieces, and the processor is programmed to collect words of particular types, conditioned by the plurality of search words, as words usable as search words.