P1: An obstacle is introduced. (Musicologists studying the London Pianoforte School don't have much music to study, with a couple of exceptions.)
P2: A solution is proposed and benefits of it mentioned. (Temperley has a new anthology that has a lot of the music in it. Making it available should encourage new critical perspectives on piano music's evolution.)
P3: One of those benefits is discussed in detail"”the need to review the topic. (London Piano School needs to be reviewed altogether. Maybe we shouldn't even call it a school.)
P4: That benefit is further analyzed in its historical context, and the author offers an opinion. (Beethoven was involved in the naming of it as a "school." Author feels that the school should be defined by the period when it flourished"”1766-1873.)