Her father Jan Jansen [nl] plays organ, harpsichord and piano; from 1987 to mid-2011 he was the organist of St. Martin's Cathedral, Utrecht, and was invested as a Knight of the Order of Orange-Nassau.

[3] She has eschewed tradition by recording with only five solo strings rather than an orchestra,[clarification needed] including her brother as cellist and father playing continuo.

[7] In September 2020, Janine was gifted the use of the 1715 Stradivari ‘Rode, Duke of Cambridge’ courtesy of a European benefactor.

She received the Dutch Music Prize in 2003, and the distinguished Royal Philharmonic Society Instrumentalist Award in Britain in 2009.

The first is a collection of encore pieces, conducted by Barry Wordsworth, the second a chamber ensemble rendition of Vivaldi's Four Seasons.

The Beethoven was recorded with Die Deutsche Kammerphilharmonie Bremen, and the Britten with the London Symphony Orchestra.

[19] On 29 December 2010, Jansen played with Mischa Maisky and Hannes Minnaar Antonín Dvořák's Piano Trio in e minor, op.90 'Dumky' at the Internationaal Kamermuziekfestival Utrecht, Vredenburg.

Various CDs with Spectrum have been released on the NAXOS label: Ernő Dohnányi – Serenade for String Trio and the Sextet (Nr.

Jansen also recorded an album of chamber music with the violinist Boris Brovtsyn, the violists Amihai Grosz and Maxim Rysanov, the cellists Torleif Thedéen and Jens Peter Maintz.

She recorded Bach's concertos for violin in A minor and in E major with a small ensemble with players chosen by herself (strings: Boris Brovtsyn, Cindy Albracht, Fredrik Paulsson, Julia-Maria Kretz, Tijmen Huisingh, Monika Urbonaite, Nimrod Guez, Pauline Sachse, Maarten Jansen, Rick Stotijn; harpsichord: Jan Jansen) and the concerto for violin and oboe with the soloist Ramón Ortega Quero.