the pins on the interactive map show the double summit of Tomir. Massanella is the west side of the Lluc valley- the two prominent summit ridges show up very clearly.
We tried this hike out and despite the incredibly poor trail markings, we ended up at the saddle just north of Massanella (indicated with an elevation of 1205 on the map associated with this page)
The summit of Massanella is protected by a 40 meter cliff, but there is still a trail from this side that reaches the top:
continue walking along the trail to the West and keep your eye out for a smaller trail that branches off to the left marked with cairns. This trail heads up to the western corner of the cliffs where there is a more gradual rock slope. This will take you to Puig de seis Basetes, and you can figure out a way to Massanella from there.