- Performer DJ Gabry & DJ Nass vs. Ivan Dark
- Title Retrospective Harmony
- Date of release 2008
- Country Spain
- Style Hardstyle, Makina
- Label Secuencial Records
- Catalog number SE 001
- Other formats Vinyl, 12", 45 RPM, 33 ⅓ RPM
- Genre Electronic
- Size MP3 2733 mb
- Size FLAC 1358 mb
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