Kyoko

Some of the features:

• Playing music from multiple sources and multiple formats (YouTube, SoundCloud, Twitch, NicoNico, Bandcamp, TheModArchive, Discord CDN/Attachments, Spotify via YouTube search).
• Support for many sequences/tracker formats such as .midi (MIDI files), .ptcop (PxTone Collage), .xm (FastTracker II), .mod (ProTracker), .s3m (ScreamTracker 3), .it (Impulse Tracker), .mptm (Modplug/OpenMPT), .med (OctaMED), .ahx and many other module formats.
• Real-time audio filters (voter*/donator only; nightcore/daycore, vaporwave, karaoke, pitch)
• Powerful and easy to use.

Website: kyokobot.moe

Support server: discord.gg/5g9qdABNQ8

* = depending on usage, gets limited to donators if too many guilds are using it.