The fireworks display at Edinburgh's Hogmanay celebrations will be choreographed to a score written for the occasion for the first time.
Event producers Underbelly have commissioned Niteworks, a band from from Skye, and film and theatre composer and sound designer Dan Jones to create a "soundscape" for the midnight fireworks show.
Niteworks, who are performing at the street party, fuse Gaelic language and traditional music with electronic influences.
Several tracks from their latest album will be developed into a nine-minute work to accompany the fireworks display, which has been designed by Titanium.
Charlie Wood and Ed Bartlam, directors of Edinburgh's Hogmanay, said: "This is probably one of the most exciting things to happen to fireworks in Edinburgh since the first recorded firework was set off at Edinburgh Castle in 1507.
"Those attending the street party, concert in the gardens or ceilidh under the castle will be treated to an exceptional sound and light spectacle.
"Niteworks, Dan Jones and Titanium are mighty individually but as a trio they are creating an epic midnight moment for those at Edinburgh's Hogmanay to enjoy."
Rag'n'Bone Man, Declan McKenna and Nina Nesbitt will be playing the concert in the gardens while performers on other stages include Human League, Sacred Paws and Treacherous Orchestra.
Niteworks said they were delighted to be taking part in the event.
Allan MacDonald, the group's piper, said: "It really is an honour. We were thrilled to be asked to perform live for the street party, but to be asked to put the music together with Dan for the fireworks has just been something else entirely.
"We're a bit lost for words on how to describe this one.
"The original brief we got was to try to recreate the sound of Scotland, tomorrow.
"To do this, we felt it was important to include songs in both Gaelic and in English, and also to have a tune on the pipes for immediately when the bells come in."
He continued: "Straight away we spent a whole day just watching New Year's Eve fireworks displays from around the world.
"It's interesting to see the different styles; London and Melbourne are quite pop and contemporary, whereas Tokyo or Dubai, for example, are more traditional/classic.
"We're aiming for a vibe something in-between these styles that people will hopefully enjoy bringing the bells in to."
Mr Jones said: "I've been working with Nitework's very beautiful music to create even more light and shade and really draw out the drama for Titanium to work with on the visual front.
"It's been a fantastic collaboration and they have been very generous."
Edinburgh's Hogmanay celebrations run for three days in the capital city, drawing in an estimated 150,000 people from elsewhere in the UK and around the world.
Councillor Donald Wilson, culture and communities convener at Edinburgh City Council, said: "For decades, all eyes have turned to Edinburgh for our Hogmanay midnight moment.
"This year, for the first time ever, all ears will be listening in too as Niteworks and Dan Jones provide a live soundtrack to our famous fireworks display.
"Produced on behalf of the council for the enjoyment of all, Edinburgh's Hogmanay is the best New Year's Party in the world.
"Don't miss this extended, musical extravaganza as we say goodbye to 2017, and herald in the new year."