Later, in 2018, they were in the piano class of Prof. Birgitta Wollenweber at the Hochschule für Musik "Hanns Eisler" in Berlin, Germany.

Hassan and Ibrahim Ignatov have received over 70 awards from different competitions for pianists from several domestic and overseas competitions, rich concert activity, special guests at TV shows, both in Bulgaria and abroad - Carnegie Hall, USA, UK, Poland, Malta, France, Bulgaria, Turkey, North Macedonia, Austria, Germany, the Netherlands, Russia, UAE and others.

The music was recorded by the Pleven Philharmonic Orchestra[25] and Evgeni Dimitrov, while the lyrics were written by Krisia and Ivaylo Valchev.

[26][27] On 9 November 2014 a team of 10 people – parents of the twins, vocal pedagogue Svilena Decheva, Evgeni Dimitrov, and reporters from two television stations – went to Valletta.

[31] They visited the National Assembly, where deputies in the hall gave them a standing ovation, and Parliament Speaker Tsetska Tsacheva congratulated them for their Eurovision success.

[33] Their career followed by giving concerts in Moscow, New York, Vienna, Sofia,[34] Dobrich,[35][36] Dimitrovgrad,[37] Pleven,[38] Varna,[39] Plovdiv,[40] Sliven,[41] Pazardzhik, and Razgrad.

[46] In the USA, Hassan and Ibrahim performed in Bulgarian schools in New York and the Consulate General of Bulgaria in New York[47][48] At a ceremony in the Golden Sands resort they received honorary diploma of NASO (National Alliance for Social Responsibility) for outstanding achievements in the arts and culture and contribution to social and European development of Bulgaria.

On 25 September 2015 Hassan and Ibrahim, together with Krisiya participated at the mega-concert of Slavi Trifonov and the Ku-Ku Band, which held in the National Stadium Vasil Levski in Sofia in front of 70 000 people.

[49][50] In JESC 2015 Krisiya, Hassan and Ibrahim participated in the opening ceremony as the runner ups of the last edition of the contest, and on the final night they performed a new version of "Planet of the Children".

In August 2018, they emigrated from Bulgaria to Berlin, Germany, as they were accepted as "Young Students" (Jungstudenten) at the Hochschule für Musik "Hanns Eisler".

In the end of April 2019, they participated in the "First International Piano Competition for Young Pianists 'Carl Maria von Weber' " in Dresden, Germany.

Very soon after that, in May, they won the 1st and the 2nd prize in the III Group in the "International Fryderyk Chopin Piano Competition for Children and Youth" in Szafarnia, Poland – 2019.

In June, during the "19th Munich Piano Podium for Young People 2019", they won in total 11 special awards: After a short summer break, the twins returned with new repertoire focused on Fryderyk Chopin.

In September 2021, they both won first prizes and the Grand Prix in the "24th International Music Competition "Hopes, Talents, Masters" " in Dobrich, Bulgaria.

They continued in April with their first individual concert tour "In the Name of the Music" in Bulgaria in the cities Sliven, Yambol, Burgas, Varna, Dobrich, Nova Zagora and Shumen.

They continued with their second concert tour "Klavirtuozno" in Bulgaria (in one year) with a completely different repertoire – in Yambol, Sliven, Shumen and Pleven.