In the background, massif after massif of mountain appeared to emit a low, endless, bass note.

It's a compelling, minute piano suite, relying on extreme of mood, texture and colour, and with a single tolling bass note.

The implied basslines are created with low notes of short duration that many listeners perceive as being the bass note of a chord.

It was built around a single, emphatic bass note followed by a rapid succession of lighter notes.

Players use this pedal to sustain a single bass note or chord over many measures, while playing the melody in the treble section.