Volume & Seek
/volume <amount> changes player volume. The allowed maximum can vary with the user's Music Premium access, and Kakashi reports the current maximum when a requested value is outside the permitted range.
/seek <minute>:<second> moves playback position in a seekable track.
Not every audio source supports seeking equally. A live stream, for example, does not behave like a normal finite track.
Music commands share the same server player, so one control can affect what everyone in that voice session hears. Queue/playlist limits and some advanced controls can depend on Music Premium; use /musicstatus when a limit differs from what you expected.
When troubleshooting, separate saved playlist data from the live server queue. They are different objects and can have different limits/state.