Viewers in tears watching The Piano episode filmed in Cardiff railway station

The latest episode of Channel 4's brilliant series The Piano aired on Sunday - and viewers were in pieces watching talented pianists play and sing their heart out in a Cardiff railway station. The Piano is hosted by Claudia Winkleman and sees expert musicians and performers Mika and Lang Lang travel the UK in the search for the nation's most amazing and most inspiring pianist.

Last year's series was won by an extraordinary young amateur pianist called Lucy, who is registered blind and has learning difficulties. After winning the programme, Lucy, who is just 15, went on to perform on stages across the UK and is the subject of the new Channel 4 documentary The Incredibly Talented Lucy, which aired after Sunday's episode of The Piano.

This year, Mika and Lang Lang are again on the hunt for a fantastic pianist - and on Sunday's episode, we saw the pair watch and critique a number of piano players invited to Cardiff Central Station to audition for the pair's upcoming musical concert in Manchester. Among the performers on Sunday's episode, we met Welsh woman Nerys who had viewers in tears when she sang a beautiful song in Welsh for her elderly father, who has Alzheimers, who was watching her in the crowd. Nerys' father could be seen humming and singing along, whilst Nerys was accompanied by a rousing Welsh Male Voice Choir.

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Other performers included Katie, who shared how performing has helped her manage her emotions through painful and upsetting IVF treatments, and 10-year-old Anton from Bristol who wanted to share a "story" through his music. We also met 21-year-old Teddy from Kenya who explained he'd learned to play piano on a piece of cardboard whilst watching videos at an internet cafe in his hometown, Nairobi. For the latest TV & Showbiz news, sign up to our newsletter

Last November, we reported how shoppers and commuters were stunned when they saw Strictly Come Dancing host Claudia and production taking over Cardiff Central Station to film the episode and tonight it was time to see what she, and Mika and Lang Lang thought.

Mika and Lang Lang were impressed by every single performer - but ultimately chose just one, Teddy, to go through to the final stage of the programme. There, he will receive training and mentorship from the pair before performing against the winners of the heats in other UK cities like Edinburgh, the centre of the episode which will air next week.

Over on social media, viewers praised many of the pianists and the challenges some have had to overcome. "Teddy from Nairobi, saving his lunch money to spend at an internet cafe, watching clips of Lang Lang and playing along on a homemade cardboard keyboard. Now he's wowing Lang Lang at Cardiff Station. (heart emoji)," wrote one, whilst another praised Jane, a Welsh woman who dedicated her performance to a friend who sadly died, writing: "Brilliant Jane singing Songbird in Cardiff with all her family watching at the station."

Another viewer alluded to the idea that everyone knows each other in Wales, writing: "I love being Welsh. Channel 4 The Piano is in Cardiff tonight. First pianist owns the mountain snack bar about 5 mins from my parents house, and then a few later is the pianist that played at our wedding. Brilliant!"

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