Given the task definition and input, reply with output. In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Context: After that, they re-recorded the old stuff and started to write new songs with the producers Mikael Nord Andersson and Martin Hansen. The result was the album Return to Forever. Link Information: The final incarnation of Return to Forever featured Corea, Clarke and Joe Farrell as well as a four-piece horn section and Corea's wife Gayle Moran on vocals, but recorded only one studio album, Musicmagic (1977).

In 1978, af Question: What date did the Scorpions release the album the album producered Mikael Nord Andersson and Martin Hansen?
Answer: 1978