Started harp first with Ümit Tunak, then with Yonca Özkan Bilenoğlu at the Istanbul University State Conservatory in 2006, Güneş Hızlılar also studied at the Harp Academy in Switzerland with a scholarship dedicated in the memory of harpist Ceren Necipoğlu. She attended masterclasses of Isabelle Moretti, Godelieve Schrama, Jna Bouskova, Nancy Allen, Alice Giles, Carl Swanson and Margret Köll.

She received numerous first prizes in different competitions including the Marcel Tournier Harp Competition, the Assia Cunego International Harp Academy Competition. She also received the second prize in the Slovene International Harp Competition, the third prize in the Martin Gelio International Harp Competition and the honorable mentions in the Reinl-Stiftung International Harp Competition and Ksenia Erdely Harp Competition. In 2015, she became a member of the Pacific Philharmonic Orchestra and gave a concert as soloist with the orchestra. She also performed as soloist with the Istanbul University State Conservatory Symphony Orchestra and Eskişehir Municipality Symphony Orchestra. As an orchestra member she played under the batons of Juan Garcia Rodriguez, Ramiz Melik Aslanov, Bruno Weill, Gernot Sahler, Christian Simonis and Avlana Eisenberg in the orchestras such as Mozarteum Symphony Orchestra, Badreichenhall Philharmonic and Oper im Berg.

In 2017, she gave concerts with OENM (Austrian Modern Music Ensemble) in the Taschenoper Fest, and premiered Gerhard E. Winkler’s Mundbogenrelikte. Güneş Hızlılar also participated in the album of the Salzburg Chamber Soloists.

Hızlılar, now a member of the Junge Deutsche Philharmonie, takes part in “Young Talents” project by Contemporary Education Foundation of Turkey, which is financially supported by the Qnb Finansbank since 2017, and continues her studies with Stephen Fitzpatrick at the Mozarteum. She regularly gives recitals in Salzburg within the project Live Music Now by the Yehudi Menuhin Foundation.