Writing music in OpenOffice, Word or Powerpoint?
For a single-voice tune you don't need a music setting program, no hassle with ex- and importing objects or graphics. With the symbol font Hymnus FG you just type !-c--d--e--f-\-G--G--\ to get the musical notes below.

New version 2.12 now with 16th notes and slurs.
Description, table of symbols and example file included.
Free to use (personal and commercial), but no redistribution. Share the link to dafont.com instead.
(Limited compatibility with older versions)

<style type="text/css">
@font-face{
    font-family:"hymnus-fg";
    src:url("https://candyfonts.com/wp-data/2019/03/02/21878/Hymnus212.ttf") format("woff"),
    url("https://candyfonts.com/wp-data/2019/03/02/21878/Hymnus212.ttf") format("opentype"),
    url("https://candyfonts.com/wp-data/2019/03/02/21878/Hymnus212.ttf") format("truetype");
}
htm_tag{font-family:"hymnus-fg";font-size:30px;text-transform:none;color:#F32951}
</style>