The main focus of your blog should be about music. If it isn''t, you should submit it to Society/People/Personal_Homepages/Weblogs/.
If your blog covers a single band, it probably belongs in Arts/Music/Bands_and_Artists/ in the band''s category.
If there are not regular updates to your site/blog please submit to Arts/Music/Personal_Pages/, where there is more flexibility in the timeliness of updates.
A music weblog (blog) is run by an individual (or a small group of individuals) and covers topical issues in and around music. Weblogs are updated regularly and disseminate both fact and opinion online. Weblogs are not constrained to a particular musical style or focus but offer simply writers' opinions on musical activities in a timely fashion.