It is the year 2083. FTL travel is about to become possible.
Like in aviation, space travel has its own set of conventions. For example; planes "squalk" their transponder code. Starships "sing" a much shorter code, in 4-digit alphanumeric characters. Meaningful song codes include jacksong (to indicate a hijacking), stopsong (to indicate loss of control) and swansong (indicating a reactor failure).
All have seen uses before, apart from one particular code that has existed since the first disastrous FTL drive test several hundred years ago. It indicates a deliberate attempt to break the lightspeed limit.
This code - the code being sung by the starship several controllers just observed leaving the planet's orbit - is known as Jumpsong.