Back in 2020, I explained how to use Terminal to display stock quotes. Once set up, it looks something like the image at right, though that's a four-year old screenshot, so the prices are way off!| The Robservatory
Back in the early Mac OS X iTunes era, there was a wonderful small window available that had control buttons, volume control, a visual progress bar, and a text display showing the artist, song, and album—it could even display a graphic equalizer in lieu of the artist-album-song info:| The Robservatory