Why do some notes show as boxes?

They are probably from the Musical Symbols block, which is large, specialised and poorly covered on phones. The basic notes and accidentals sit in Miscellaneous Symbols instead and are supported almost everywhere.

Which note is safest?

The eighth note and the beamed eighth notes. Both are old, simple glyphs and both render reliably across devices.

Music symbols, copy and paste

Tap any symbol to copy it. 13 characters, each one verified against the Unicode database.

Ready-made combos

Tap to copy the whole arrangement. These are the framed forms people use in bios, built from characters that are checked the same way the grid above is.

Dividers and borders

Box-drawing characters join without gaps when repeated, which is what makes these read as one rule rather than a row of dashes. Each character counts against your limit, so a long divider is an expensive piece of decoration.

In a bio

Three lines you can adapt. Replace the words and keep the spacing.

Musical marks split into two groups. The basic notes and accidentals sit in Miscellaneous Symbols and are well supported everywhere. The full musical notation block is far larger and far less supported, so notes from it often render as boxes on phones.

Two blocks, very different support

The characters here split cleanly. The quarter note, eighth note, beamed notes, flat, natural and sharp all live in Miscellaneous Symbols and have been in Unicode since 1993. They render essentially everywhere.

Everything beyond those comes from the Musical Symbols block, which was designed for real notation. It is large, specialised, and poorly covered on phones. Notes from it frequently arrive as empty boxes.

Which to use

The beamed eighth notes at U+266B are the most recognisable and the most reliable. The single eighth note at U+266A is the next safest. Both read as "music" at a glance and neither breaks.

The accidentals are not decoration

The flat, natural and sharp signs carry precise meaning to anyone who reads music. Used ornamentally they read as a small mistake to that audience, in the way a misused apostrophe does. Worth knowing before putting a sharp sign in a name.

Using them well

One note reads as a detail. Three read as decoration and start competing with the words. The most common mistake on this page is a row of eighth notes used as a divider, which costs several characters and says less than a single middle dot would.

Musicians tend to use these differently from everyone else. A sharp or flat sign next to a name reads as a joke or a claim to anyone who reads notation, which is worth knowing before putting one in a handle.

If the goal is simply to signal music, the beamed eighth notes do it at one character and render everywhere. Everything beyond that is a trade of reliability for specificity.