What actually makes a good music lover gift for your brother?
Usefulness should not mean impersonal. Good options include listening upgrades, record-care tools, music books, display pieces and accessories related to how they enjoy music, but the exact choice should reflect the interests you know he will immediately recognize as “his thing”. A common mistake is cheap audio gadgets that are likely to sound worse than what they already use. Another is generic sibling jokes that replace rather than support a real gift idea. Choose the version that matches their actual level, setup and habits rather than the most broadly marketable version.
The strongest gift ideas usually come from the person’s real habits: what they already use, what they talk about and what would make an existing interest better.