Useful. The dynamics, speed, expression marks, omissions, etc. on the regular music scores are mostly marked in Italian (there are also some commonly used marks expressed with various abbreviations), and they are all in it. Can be found. For example, the following:

/view/1498323.htm

For an instrumental and vocal music learner, it is difficult to memorize all of these at once. Having such a dictionary is helpful You can check it at any time.