Unisono (unis.): meaning and use in music

Unisono (unis.) means that several players sound the same line together, at the same written pitch or in octaves.

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Abbreviation
unis.

How is unisono played?

Have the group play one common part rather than splitting simultaneous notes, thereby cancelling a preceding divisi. In the strict intervallic sense, unison is two or more parts on the same pitch or at octave equivalents, the most consonant interval and the easiest to tune cleanly. For a return after double stops, non div. can be more precise; for two like wind instruments on one staff, a 2 may be clearer. This line-allocation function is distinct from tutti, which restores the number of players after a solo or reduced group.

How does unisono sound?

The listener hears one reinforced melodic line — louder and more present than a single player, yet still distinguishable as many instruments because of their differing timbres blending into one strengthened voice.

In context

Standard references define unison as two or more parts sounding the same pitch or octave equivalents and unisono (unis.) as all players in a group taking the same written line rather than dividing simultaneous notes. Stone, A-R and Wulfhorst support unis. as a return from divisi. Stone explicitly separates it from tutti: unis. answers how a section is divided into lines, while tutti answers how many players re-enter.

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