Niedzielski toured widely in Europe as a concert violinist. In August 1864 he made his first appearance in England at the
Royal Opera House performing in a concert series organized and conducted by
Alfred Mellon. That same month he performed a concert in London under conductor
Enrico Bevignani. He performed in a concert at
St James's Hall in March 1866, and the following May was performing in London's Beethoven Rooms with pianist
William Cusins among other musicians. In June 1866 he performed in a concert at the
Hanover Square Rooms organized by composer
Francesco Berger and his wife, the contralto Annie Lascelles. The following month he performed in a benefit concert organized by the London gentry at Messers. Collard's Concert-room, in
Grosvenor Street. Patrons included
Louisa Beresford, Marchioness of Waterford,
Frances Vane, Marchioness of Londonderry, and
Agnes Duff, Countess Fife among other society women. In August 1866 Niedzielski performed a concert at
Birmingham Town Hall with
James Stimpson as his conductor. The reviewer in the
Birmingham Daily Post described him as an "imitator of
Henryk Wieniawski" who "displayed tastes and talent of no mean order. His tone is light, his style playful and spirited, and his execution generally very neat and finished." After this he worked as a violinist in Paris, before briefly returning to England in October 1868 to perform in concert with at
St George's Hall, Bradford. In 1874 Niedzielski was engaged as the
concertmaster of an orchestra led by Edouard Audibert which performed at several venues in England, including the Royal Drill Hall, Beckett St in
Derby, St George's Hall, Bradford, and the
Assembly Rooms, Cheltenham. In 1875 he toured England in concerts with mezzo-soprano Stella Bonheur, soprano Madame Sinico-Campbello, and the latter's husband, baritone Enrico Campobello (real name Henry McLean Martin) for performances in
Ormskirk Tunbridge Wells,
Warrington,
Leamington Spa,
Bradford, and
Bournemouth. After this he played in the first violin section of the
Royal Opera House and was concertmaster of the orchestra at the Theatre Royal, Leicester. In 1877 Niedzielski played as a solo violinist in concerts of music given by an Italian opera company led by sopranos
Emma Howson and Madame Sinico, and tenor
William Shakespeare. the
Exhibition Palace in Dublin,
Ulster Hall in Belfast, Portland Hall in Southsea, Victoria Hall in
Exeter, the
Victoria Rooms, Bristol, The Great Hall in Tunbridge Wells, Kinnaird Hall in
Dundee, the
Greenock Municipal Buildings, the
Bath Assembly Rooms, and Music Hall in
Worcester, England. In October 1877 he accompanied soprano
Emma Albani in a concert given in Brighton. He was still with the Italian opera company led by Howson and company in January 1878 for performances at Victoria Hall in Carlisle. In July 1879 and July 1880 he gave recitals at
Steinway Hall in London. In 1880 Niedzielski performed in concert with the Belfast Choral Association, and in performances of Rossini's
Stabat Mater at the Exhibition Palace in Dublin. He then appeared as a concert violinist in Spain, and was awarded the title of Knight of the
Order of Isabella the Catholic by King
Alfonso XII in March 1881. By the following June he was once again back in England where he was engaged once again for concerts at Steinway Hall. In July 1881 he performed in London at the convention of the
British Homeopathic Society, and the following October and November he performed in concerts with the Belfast Philharmonic Society. In June 1882 Niedzielski performed once again at London's Steinway Hall. Later that year he was a member of the first violin section in the orchestra at the
Birmingham Triennial Music Festival under
Prosper Sainton as concertmaster and
Michael Costa as conductor. He concluded the year touring the United Kingdom in concerts whose chief aim was raising money for the newly created
Royal College of Music. One of the musicians whom he performed with on this tour was singer
Frederick Bevan. In October 1883 he performed a concert at Borough Hall in
Guildford, and that same year his violin composition
Souvenir de Varsovie was published by the London publishing firm F. W. Chanot. In 1884 Niedzielski appeared in concerts at the Bath Assembly Rooms. In January 1886 he performed in concerts at
Prince's Hall in London. ==Later life and career in the United States==