Los Tres Golpes (The Three Knocks) by the Cuban composer Ignacio Cervantes is a movement that explores the habanera pattern. The string quartet arrangement enables players to explore and develop tone, articulation and dynamic range in their ensembleplaying. The arrangement is scored for 2 violins, viola and violoncello. The realisation for Los Tres Golpes (The Three Knocks) is presented with a repeat played which is common when Cervantes music is performed. The playback tempo is 84 bpm. The sheet music scores also has a repeat in place although this is an editorial addition. The music has been transposed from the original key of E minor to A minor. The movement can be played at a variety of tempo although the music editor suggests that it is easier to decide when the movement is being played too slowly rather than too quickly! The choice of tempo is dependent on the instrument combination, the performance context and the acoustic of the recording or performance venue. There is scope to explore tempo rubato in a performance. These miniatures provide excellent playing material for players because they provide so many of the musical elements that feature in Cuban music. whether in art music, folk or a popular music context. Cervantes was a composer and musician who assimilated the music elements of his home country in all his work. As he studied music formally in Cuba and in Europe his music is generally presented in a way that lends itself to being arranged in the traditions of the Western music tradition. The contrapuntal element in his music is very strong and whereas formally Cervantes always has clear melodic and harmonic direction musical ideas are presented in a sectional context which are generally repeated. The suggestion is of a very quick and inventive mind particularly regarding his use of the habanera pattern. The melodic line in its original form for piano has a broad range (more than 3 octaves) and for many of the arrangements it is necessary to utilise octave transpositions to enable the most appropriate range of the featured solo instrument to be explored. For those interested in the voicing of the composer’s original score download the piano version which is available as a free score. The original PlentyMusic context for this movement was in the Ragtime and Relations Area of Study in which the focus was exploring syncopated rhythms including the habanera pattern. In 2021, the scores have been reviewed and a number of additional arrangements have been added to the PlentyMusic website. Do feedback to PlentyMusic comments about the scores and particularly the octave transpositions that could possibly be re-considered in the light of performances.