Considering a spreadsheet? For a Commodore 64? Audiogenic is experimenting with a trial-period service on software called Micro Swift.

This isn't exactly unique in the annals of software selling but it's unusual in this price bracket. Micro Swift costs £19.95; to get a demo cassette send Audiogenic a cheque or postal order for 50p, which will be refunded if you decide to buy the full program.

The demo version, Audiogenic says, is identical to the real thing except that the Load, Save and Print routines have been left out and working memory is restricted.

Other commands and fucntions are out there, with a pop-up menu control system that the company claims is exclusive to the package. Audiogenic is on 0734-663646.