"Sailing By" is a short piece of light music composed by Ronald Binge in 1963, which is used before the late Shipping Forecast on BBC Radio 4. A slow waltz, the piece uses a repetitive ABABC structure and features a distinctive rising and falling woodwind arpeggio.
Context and usage
"Sailing By" is played every night on BBC Radio 4 at around 00:45hrs before the late Shipping Forecast. Its tune is repetitive, assisting in its role of serving as a signal for sailors tuning in to be able to easily identify the radio station. It also functions as a buffer — depending on when the final programme before closedown finishes, Sailing By (or part of it) is played as a "filler" as the shipping forecast starts at 00:48hrs precisely. The initial reason for its introduction was because of the indeterminate finish time for the preceding Midnight News, leading to filling music being played until the Shipping Forecast was due to start. Sailing By was added to allow for a clear break between the end of the music and the start of the forecast.
Besides its intended function, "Sailing By" is thought of affectionately by many British radio listeners as it is considered a soothing accompaniment to bedtime. The lead singer of the Britpop band Pulp, Jarvis Cocker chose "Sailing By" as one of his Desert Island Discs, saying for many years he had used it "as an aid to restful sleep".
The BBC issued it as a single in 1973 on its own BBC Records label, played by the John Fox Orchestra. 
The piece featured as the second track on a single recorded by the Royal Ballet Sinfonia in a quest to save the "Radio 4 UK Theme". In 1993 there was a similar reaction by BBC listeners when "Sailing By" was temporarily taken off the air on weekday schedules, leading to it being re-instated in 1995.
The recording used by the BBC (performed by the Alan Perry/William Gardner Orchestra) was originally only available as library music, but has since 1997 been available commercially as track 11 on the second CD of the EMI CD set titled The Great British Experience (EMI Classics CDGB50). It is also available as track 8 on the CD Elizabethan Serenade: The Best of British Light Music, produced by Naxos and performed by the Slovak Radio Symphony Orchestra. The unexplained crediting of the BBC recording to the "Perry Gardner Orchestra", suggesting the existence of a conductor or arranger by that name, is apt to be confusing; indeed, "Alan Perry" and "William Gardner" are in fact pseudonyms for composers Ernest Tomlinson and Peter Hope. The BBC broadcast the original stereo version for a few weeks in the late 1980s, but soon reverted to a mono version.