Ján Labant is both a soloist and a chamber musician. As a soloist, he has appeared in many festivals both in Slovakia (Young Concert Artists Festival – Trenčianske Teplice, Guitar Days, J.K.Mertz International Guitar Festival, Music at the Castle – Bratislava, Cithara aediculae – Nitra, Spišs Guitar Days and at a festival at the Budimír mansion) and abroad : in Poland (Cieszyn, Kościan, Czeņstochowa, Krakow, Gdansk, Koszalin, Lublin, Krynica, Sanok, Szczawno-Zdrój, Tychy, Zory), Czech Republic (Bienále Kutná Hora, Brno, Rychnov nad Kněžnou, Ostrava, Štramberk, Hukvaldy), England (Kernow Guitar Festival) and France (Bordeaux). Apart from these, he has also performed in concerts in Poland (Warsaw, Krakow), Hungary (Debrecín), Bulgaria (Sofia), Czech Republic (Hukvaldy, Brno, Ostrava, Litomyšl, Vsetín, Odry), France (Bordeaux, Limoges, Tulle, Guéret), Spain (Barcelona, Sabadell), Austria (Vienna, Oberpullendorf), England (Truro, Saltash) and Australia (Sydney, Melbourne, Canberra, Adelaide, Cooma, Deniliquin).
In 1983, he founded in Nitra together with Pavel Sika a cycle of guitar concerts named Cithara aediculae, which developped into an international festival, where Labant participates every year as a peformer and programme director.
He conducts master classes at festivals and conservatories in Slovakia, Czech Republic, Poland, France (conservatories in Bordeaux, Limoges, Tulle) and at universities in Australia (Victory University Melbourne, School of Music at the National University Canberra). He is a member of juries at various guitar competitions in Slovakia (Bratislava, Bojnice, Dolný Kubín, Giraltovce, Nitra) and abroad (Krynica, Sanok, Poland; Zruč nad Sázavou, Czech Republic).