Ms. Porackova has performed internationally as a invited guest artist with the prestigious Beaulieu Abbey (UK), Paris International Conservatory, and Tel Aviv Diaspora Museum, Israel Recital Concert Series, and has been engaged with Paris Opera Bastille, Stadt Theater Bern, Würzburg Theater, Hong Kong Opera, and the Aix en Provence, Easter Salzburg Festivals, and Berlin Philharmonic Concert Series with the Berlin Philharmonic conducted by Sir Simon Rattle.

She has performed in concerts and operas in the USA including Alice Tully Hall, Lincoln Center NY; the Washington National, Connecticut, Baltimore, Anchorage, Boston Bel Canto, Common- wealth Lyric, Boston Lyric Operas and Opera Boston; as well as the NY, Chicago, and Boston Wagner Society Concert series. She has been hailed for her "heartfelt sense of the inner drama, huge range" (Boston Globe), her "soaring majesty" (Opera News) "passion, and skill" (New York Times)“great artist” (Boston Musical Intelligencer), “technical mastery” (Neue Züricher Zeitung) “phenomenal dramatic soprano” (American Record Guide) for her interpretations of ISOLDE, NORMA, TURANDOT, MEDEA, SALOME, TOSCA, AIDA, RUSALKA, LA WALLY, Brünnhilde, leading Verdi roles, and Magda Sorel in THE CONSUL under the direction of Gian Carlo Menotti himself. She has also performed with Masterworks Chorale, Chorus Pro Musica, Ars Musica Chorale, NY, Harvard Radcliff Chorale and the Cambridge Symphony. She has been heard in broadcasts on Swiss National Radio, Good Morning America, WGBH, BBC, ARTE, on the Bel Air Classiques DVD of Die Walkiire Berlin Philharmonic, released in 2009 and on Americus Records Russian Masters Series CD with the acclaimed pianist Dag Achatz. In 2016 she sang Fricka in Wagner’s Abridged RING with the Lexington and Nashua Symphonies, and a mezzo soprano solo in Tippett's A CHILD OF OUR TIME with the Cambridge Symphony.  In 2016, she sang Mahler SONGS OF THE WAYFARER with the New Philharmonia Orchestra.

In 2017, Ms Porackova sang duet recitals TOGETHER AT LAST in the Chicago area and a solo recital SONGS PAST AND PRESENT Songs by Mahler, Warren, Brody, and Wagner with the Boston Wagner Society.

In 2018 she sang Mezzo solo in Mendelssohn ‘s. MIDSUMMER NIGHTS Dream with the Cambridge Symphony, the alto solo in Haydn ‘s HEILIGMESSE with the Fine Arts Chorale, and was an invited guest soloist in an “Afternoon with the Boston Wagner Society”. In 2019 she will sing a solo recital of Schumann and Russian Masters with the Chaminade Club Concert Series accompanied by acclaimed pianist Ann Sears, the Mezzo solo in the Beethoven Ninth Symphony with the Cambridge Symphony, and a concert of Italian duets and arias with Boston Bel Canto Opera.