LMMS composes repeating rhythms in the Beat+Bassline Editor and non-repeating lines in the Song Editor

LMMS splits musical content between two editors by repetition character. The manual states the Song-Editor ‘is useful for non-repeating sound events, such as melody lines, while the Beat+Bassline-Editor is useful for repeating sequences, like percussion.’ Beat+Bassline events are ‘continuous’, meaning they can’t be expanded the way instrument-track segments can — they are self-contained loop blocks. The whole arrangement is assembled in the Song Editor, where all elements, including Beat+Bassline blocks, come together on the timeline. Melodic segments are opened into the Piano-Roll (‘If you double-click this box, you open the Piano-Roll Editor. This is where you compose.’). The practical consequence: you do not draw drum hits in the Piano Roll; you build them in the Beat+Bassline Editor as a step pattern and then place that loop block in the Song Editor. Grasping this split is the key to reading how any LMMS project is structured.

Examples

Kick-hat-snare beat: create a Beat+Bassline track, open its editor, click the step grid to place hits, then place the loop block on the Song Editor timeline. Melody: create an instrument track, draw a segment in the Song Editor, double-click it to open the Piano-Roll, add notes.

Assessment

Explain when you would use the Beat+Bassline Editor versus the Piano-Roll in LMMS, and why you cannot build a repeating drum pattern by drawing hits in the Piano-Roll.