Tangerine Dream is a German electronic music band founded in 1967 by Edgar Froese. The group has seen many personnel changes over the years, with Froese being the only continuous member until his death in January 2015. The best known line-up of the group was its mid-70s trio of Froese, Christopher Franke, and Peter Baumann. In the late 1970s, Johannes Schmoelling replaced Baumann.

Several of the band's albums released during the 1990s were nominated for Grammy Awards. Since then, Tangerine Dream with Jerome Froese took a directional change away from the new-age leanings of those albums and toward an electronica style. After Jerome's departure, founder Edgar Froese steered the band in a direction somewhat reminiscent of material throughout their career.  In later years, Tangerine Dream released albums in series. The Dream Mixes series began in 1995 with the last being released in 2010. The Divine Comedy series, based on the writings of Dante Alighieri, spanned 2002-2006. From 2007-2010, the Five Atomic Seasons were released. Most recently, the Eastgate Sonic Poems series, based on the works of famous poetic authors such as Edgar Allan Poe and Franz Kafka, began in 2011, with the last appearing in 2013. Also, beginning in 2007, Tangerine Dream released a number of EPs, referred to as "CupDiscs" by the band.  Edgar Froese also released a number of solo recordings which are similar in style to Tangerine Dream's work. Jerome Froese released a number of singles as TDJ Rome that are similar to his work within the Dream Mixes series. In 2005 he released his first solo album Neptunes under the name Jerome Froese. In 2006 Jerome left Tangerine Dream to concentrate on his solo career. His second solo album Shiver Me Timbers was released on 29 October 2007, and his third, Far Side of the Face, was released in 2012. Beginning in 2011, Jerome Froese joined with former Tangerine Dream member Johannes Schmoelling and keyboardist Robert Waters to form the band Loom, which plays original material as well as Tangerine Dream classics. Thorsten Quaeschning, leader of Picture Palace Music, was brought into Tangerine Dream in 2005, and contributed to most of the band's albums and CupDiscs since then.  The group had recording contracts with Ohr, Virgin, Jive Electro, Private Music, and Miramar, and many of the minor soundtracks were released on Varese Sarabande. In 1996, the band founded their own record label, TDI, and more recently, Eastgate. Subsequent albums are today generally not available in normal retail channels but are sold by mail-order or through online channels. The same applies to their Miramar releases, the rights to which the band bought back. Meanwhile, their Ohr and Jive Electro catalogs (known as the "Pink" and "Blue" Years) are currently owned by Esoteric Recordings.

Answer the following question by taking a quote from the article: when tangerine dream go independent?
Edgar Froese steered the band in a direction somewhat reminiscent of material throughout their career.