Stems, Lyrics, and Timeline
Short answer: feedpak files can include more than notes. They may also include audio stems, lyrics, timing maps, sections, tempo, and related song data.
Stems
Stems are separate audio tracks such as:
- Full mix.
- Vocals.
- Drums.
- Bass.
- Guitar.
- Other.
Not every song includes stems.
Lyrics
Lyrics may include timed words, lines, translations, or transliterations depending on the song package and format version.
Timeline
Timeline data may include:
- Beats.
- Sections.
- Tempo changes.
- Time signature changes.
- Keys or harmony where available.
Why This Data Matters
Plugins use this data for lyrics, stem mixing, section navigation, metronome behavior, and practice views.