Kuusisto plays a Golden Period [[Antonio Stradivari]] violin, made in Cremona c.1709 and known as the 'Scotta', loaned by a patron through [[Tarisio Auctions]].{{cite web |title=Violinist Pekka Kuusisto Granted Use of 'Scotta' Stradivari |url=https://theviolinchannel.com/violinist-pekka-kuusisto-granted-use-of-scotta-stradivari/ |website=The Violin Channel |access-date=4 March 2022}}

Kuusisto plays a Golden Period [[Antonio Stradivari]] violin, made in Cremona c.1709 and known as the 'Scotta', loaned by a patron through [[Tarisio Auctions]].{{cite web |title=Violinist Pekka Kuusisto Granted Use of 'Scotta' Stradivari |url=https://theviolinchannel.com/violinist-pekka-kuusisto-granted-use-of-scotta-stradivari/ |website=The Violin Channel |access-date=4 March 2022}}

Kuusisto works with musicians of many different backgrounds. He regularly performs with electronics, giving concerts consisting of mostly improvised material. During the past few years, he has frequently performed a solo recital program consisting of the [[Partita for Violin No. 2 (Bach)|Partita in D minor]] by [[Johann Sebastian Bach]] and electronic improvisations on funeral chorales. The traditional music of Finland serves as a source of inspiration for Kuusisto, and his approach to the violin has changed substantially since he became more involved with folk music and its performers. He has been a guest performer with groups such as [[Nightwish]], [[Rinneradio]], [[Don Johnson Big Band]], The National and Salsa Dura.{{cite web |url=https://finland.fi/arts-culture/now-trending-globally-finnish-metal-music/ |title=Now trending globally: Finnish metal music |last1=Weaver |first1=James |date=2015 |website=finland.fi |publisher= |access-date= 26 October 2016|quote=Finnish metal bands aren’t afraid to mix far-flung influences. Here violinist Pekka Kuusisto and Uilleann piper Troy Donockley are jamming with Nightwish.}}{{cite web |url=http://rinneradio.com/biography/ |title=Biography |last1= |first1= |last2= |first2= |date= |website=Rinneradio |publisher= |access-date=26 October 2016 |quote=...Regular RinneRadio guest, violin player Pekka Kuusisto...}}{{cite web |url=http://dome.fi/musiikki/haastattelut/haastattelu-don-johnson-big-band-melkein-oikea-big-band |title=Haastattelu: Don Johnson Big Band – melkein oikea big band |last1= |first1= |last2= |first2= |date= |website=Dome |publisher= |access-date=26 October 2016 |language=fi |archive-url=https://web.archive.org/web/20160604010322/http://dome.fi/musiikki/haastattelut/haastattelu-don-johnson-big-band-melkein-oikea-big-band |archive-date=4 June 2016 |url-status=dead }}

Kuusisto works with musicians of many different backgrounds. He regularly performs with electronics, giving concerts consisting of mostly improvised material. During the past few years, he has frequently performed a solo recital program consisting of the [[Partita for Violin No. 2 (Bach)|Partita in D minor]] by [[Johann Sebastian Bach]] and electronic improvisations on funeral chorales. The traditional music of Finland serves as a source of inspiration for Kuusisto, and his approach to the violin has changed substantially since he became more involved with folk music and its performers. He has been a guest performer with groups such as [[Nightwish]], [[Rinneradio]], [[Don Johnson Big Band]], The National and Salsa Dura.{{cite web |url=https://finland.fi/arts-culture/now-trending-globally-finnish-metal-music/ |title=Now trending globally: Finnish metal music |last1=Weaver |first1=James |date=2015 |website=finland.fi |publisher= |access-date= 26 October 2016|quote=Finnish metal bands aren’t afraid to mix far-flung influences. Here violinist Pekka Kuusisto and Uilleann piper Troy Donockley are jamming with Nightwish.}}{{cite web |url=http://rinneradio.com/biography/ |title=Biography |last1= |first1= |last2= |first2= |date= |website=Rinneradio |publisher= |access-date=26 October 2016 |quote=...Regular RinneRadio guest, violin player Pekka Kuusisto...}}{{cite web |url=http://dome.fi/musiikki/haastattelut/haastattelu-don-johnson-big-band-melkein-oikea-big-band |title=Haastattelu: Don Johnson Big Band – melkein oikea big band |trans-title=Interview: Don Johnson Big Band – almost a real big band |last1= |first1= |last2= |first2= |date= |website=Dome |publisher= |access-date=26 October 2016 |language=fi |archive-url=https://web.archive.org/web/20160604010322/http://dome.fi/musiikki/haastattelut/haastattelu-don-johnson-big-band-melkein-oikea-big-band |archive-date=4 June 2016 |url-status=dead }}

Kuusisto also writes music, but mostly for small ensembles where he is one of the performers. With accordionist {{ill|Johanna Juhola|fi}}, he wrote half of the album ''Max Höjd'' and half of the music for ''Auf Wiedersehen Finnland'', a documentary film by Virpi Suutari about World War II events in Finnish Lapland.

Kuusisto also writes music, but mostly for small ensembles where he is one of the performers. With accordionist {{ill|Johanna Juhola|fi}}, he wrote half of the album ''Max Höjd'' and half of the music for ''Auf Wiedersehen Finnland'', a documentary film by Virpi Suutari about World War II events in Finnish Lapland.