In composition, there are strategies to create tension and resolution in melodies or in the harmonization between two voices. This relationship between tension and resolution is known as a harmonic suspension. Suspensions are classified according to the relationship between the tension and resolution notes in relation to the bass.

According to their relationship with the bass, they are classified as 4–3, 7–6, 9–8, or 2–3. In other words, when the melody forms a fourth above the bass and then descends to a third; in the second case, when it moves from a seventh to a sixth, and so on.

It’s important to note that, in general, the dissonant suspension should have a consonant preparation and resolve to a consonant note. This helps achieve a more natural and expressive melodic curve.

Another recommendation is that the preparation and resolution should each last at least as long as the suspension itself.

Here’s an example in this short piece for acoustic guitar titled Pasaje:

And as usual, here is the score in case the reader wants to give it a try:

We will carry on writing about music, for the reader´s enjoyment.