in a periodical for musicians or music buyers, in a specialized magazine or even on a big platform online
Explanation:
Nowadays you can find anything, really, quite easily. Magazines are dying, but they're still there and specialized ones might contain that sort of information. Same goes for specific sections on newspapers and, nowadays, for specific channels on web platforms. Online, there's no way you can't find something like that. In fact, it's quite easy to find almost anything that you want; specially opinions and reviews about things.
hey bro ,am writing this letter to inform you about my father's birthday party so will you be able to come cause his turning 60 which means all of his children should be there to celebrate with him and let him know that indeed we love him as his children and all we want for him is to be happy ❤️