L- is manifested phonetically as a low sustained tone or a low descending tone that attains the baseline of the speaker.
It is attested after left-dislocated elements in broad focus statements, before a right-dislocated element in broad and narrow focus statements, imperatives, falling yes-no questions, wh-questions, etc.
Example
Example: Broad focus statement
Esta mañana, a pesar de la lluvia, he ido al médico.
[This morning, despite of the rain, I went to the doctor's.]