# SM8521 instrument editor the SM8521 instrument editor contains two tabs: Wavetable and Macros. ## Wavetable this allows you to enable and configure the Furnace wavetable synthesizer. see [this page](wavesynth.md) for more information. ## Macros - **Volume**: volume sequence. - **Arpeggio**: pitch sequence. - **Waveform**: wavetable sequence. - **Pitch**: fine pitch.