The equipment was so powerful and the vibe so strong that we feel it." Keyboards From the earliest days of ska recordings, a piano was used to double the rhythm guitar's skank, playing the chords in a staccato style to add body, and playing occasional extra beats, runs and riffs. The piano part was widely taken over by synthesizers during the 1980s, although synthesizers have been used in a peripheral role since the 1970s to play incidental melodies and countermelodies. Larger bands may include either an additional keyboardist, to cover or replace horn and melody lines, or the main keyboardist filling these roles on two or more keyboards. The reggae organ-shuffle is unique to reggae. In the original version of reggae, the drummer played a reggae groove that was used in the four bar introduction, allowing the piano to serve as a percussion instrument. Typically, a Hammond organ-style sound is used to play chords with a choppy feel. This is known as the bubble. This may be the most difficult reggae keyboard rhythm. The organ bubble can be broken down into two basic patterns. In the first, the eighth beats are played with a space-left-right-left-space-left-right-left pattern, where the spaces represent downbeats not played—that and the left-right-left falls on the ee-and-a, or and-2-and if counted at double time. In the second basic pattern, the left hand plays a double chop as described in the guitar section while the right hand plays longer notes on beat 2 (or beat 3 if counted at double time) or a syncopated pattern between the double chops. Both these patterns can be expanded on and improvised embellishments are sometimes used. Horns Horn sections are frequently used in reggae, often playing introductions and countermelodies. Instruments included in a typical reggae horn section include saxophone, trumpet or trombone. In more recent times, real horns are sometimes replaced in reggae by synthesizers or recorded samples. The horn section is often arranged around the first horn, playing a simple melody or counter melody. The first horn is usually accompanied by the second horn playing the same melodic phrase in unison, one octave higher. The third horn usually plays the melody an octave and a fifth higher than the first horn. The horns are generally played fairly softly, usually resulting in a soothing sound. However, sometimes punchier, louder phrases are played for a more up-tempo and aggressive sound. Vocals The vocals