Zonkor you are confusing different elements.
You need 3 things to fly an aircraft:
1) A Pilot's License which grants you certain privileges.
(PPL privileges are as you quoted from FCL.205)
(NB: A TMG is one thing - A sailplane with a non-retractable engine,
Aeroplanes in the sentence you quote could mean many things - SEP(Land),
SEP(Sea), MEP(Land), etc all needing different Ratings)
2) A qualification to fly a certain Class or Type of Aircraft
You say you have an SEP (presumably Land) Rating
So this is the only Class of aircraft you can fly.
3) A medical valid for whichever License Privileges or Rating Qualifications
you wish to exercise.
If you wish to fly a different Class or Type of Aircraft then a new
qualification (eg TMG Rating) will be required and, as PS says,
Part-FCL.725 applies.
Only once a License Holder has both SEP and TMG Ratings does
Part_FCL say the Revalidation requirements can be met on one, the other
or shared between both Ratings.
Last edited by Level Attitude; 25th Feb 2013 at 20:10.