[fixed] guitar practice time was incorrect

locations/music_bedroompractice.qsrc

@@ -2,7 +2,7 @@
 !! TODO: Practice and Rehearsal - Rename the file too. F
 if $ARGS[0] = 'guitar':
 	*clr & cla
-	minut += 30
+	minut += 15
 	ml_performance['performed_minutes'] += 15
 	ml_performance['total_time_performed'] += 15	
 	pcs_mood += 5