The next round of industrial action will include a 24-hour strike from midnight on 6 March.
The Balearic attorney's office is to lodge an appeal which will seek to recover the 2.3 million euros that were paid to the Instituto Nóos.
Grants are available to modernise and renovate premises in "mature" zones.
The environment and agriculture ministry estimates that 30% of annual agricultural production in the Balearics has been lost.
The concert by the BACHrroc Ensemble will be at Santa Tereseta Church in Son Armadans, Palma this Saturday at 20.30.