IT was a small but enthusiastic group of bemused hillwalkers that watched a Danish choir perform on top of a Scottish mountain.

However, tens of thousands of people have now viewed the hilltop singing of the 50-strong Panumkoret ensemble after footage was posted on social media.

Rambler Frank Ewe said the experience, shared with just a few others, had been “amazing, incredible and magical”.

Made up mostly of students and staff from the medical facility of Copenhagen University, the choir travelled to Scotland for a short tour.

This included a date at Dunblane Cathedral with the Rosenethe Singers, an amateur troupe of vocalists from across Stirlingshire.

However, the day before the cathedral event, members of Panumkoret scaled 454-metre-high (1489ft) Ben A’an for a unique performance against the stunning backdrop of the Trossachs.

Despite clouds above, the bright conditions allowed onlookers at the conical summit to take in views of scenic Loch Katrine.

Hillwalker Ewe happened upon the choir, filmed them in action, and uploaded the four-minute clip to Facebook.

It has now been viewed more than 31,000 times, with commenters describing the footage as “heavenly”, “stunning” and “beautiful”.

Ewe told The National he had been descending the peak when he was surprised to see a large number of others climbing up.

He said: “I had the most amazing, incredible and magical experience. I was on the way back down and thinking ‘this is getting really busy, that must be a bloody choir going up’. Turned out it was.

“Not wanting to miss out on a free concert, I joined them. They were simply beautiful singers and I hope the video does them justice.”

Ewe followed up the outdoor performance by attending the choir’s cathedral session the following evening. The 90-minute concert included a number of Danish and Scottish short pieces.

Ewe added: “They were just as amazing. I met the choir members at the end and they were so genuine and kind, really friendly people and very happy to chat with me and my wife.

“It was a bit surreal as some people from the choir came over to speak to ‘that random Scottish guy whose video had made them famous’.

“We had the delight and honour of staying and hearing a few more songs, after the rest of the audience had left.”

Situated at the heart of the Trossachs near Aberfoyle, Ben A’an is among the country’s most popular shorter peaks with walkers, including families with young children, despite its steep final ascent.