According to this press cutting from Aftonbladet dated 5 August 1969, Agnetha was due to travel to Vasa in Finland on Sunday 10 and Monday 11 August 1969 to record a TV programme for broadcast later in the year.  The article says she would perform three of her own songs.

No further information.

Thanks to Johanna Hammer Hildebrandt c/o ABBAtalk.