Oh, music should never depress you.
Most music has nothing whatsoever to do with death. Leave that to a few operas whose leading characters come to unfortunate ends; and to sacred music intended in memorium (requiems and the like).
Most good, secular music written over the last five or six hundred years and more, and still being written, is intended as art and for entertainment, for its performers and listeners to enjoy, be inspired by it, even challenged and stimulated emotionally and intellectually: all positive emotions.
(As well as the cash of course: Bach and Beethoven composed for a living just as much as The Beatles and Bacharach did!)
I agree you won't like all music. None of us do. Musical tastes are subjective and personal.
For example, I like a lot of 1960s pop, heavy rock, folk, Classical, Romantic-Modern era and some jazz; but find most electronica mechanistic and soul-less, some Classical sonatas a bit dry, present-day pop formulaic and empty, and the avant-garde impenetrable. (Note the capital 'C'.)
You can find uplifting rather than depressing works.
There is a vast range available!
