zgifi'i lujvo

f1 composes music f2=z1 for purpose f3.

In notes:

zgiselfi'i
f2=z1 is a musical composition composed by f1for function/purpose f3 from existing elements/ideas f4.
konceto
x1 is concerto number x2 in key x3 composed by x4 performed by/at x5( event).
simfoni
x1 is symphony number x2 key x3 composed by x4 performed by/at x5 (event).
jgitrviolino zei konceto
x1 is violin concerto number x2 in key x3 composed by x4 performed by/at x5( event).
pipnrpiano zei konceto
x1 is piano concerto number x2 in key x3 composed by x4 performed by/at x5( event).