antikfira:
The Mishna Berura states l’hedya that the dinim of mourning do not apply on Lag BaOmer. He then clarifies that regarding haircuts specifically, one should wait until the morning, at which point the svara of miktzas hayom is applied. He does not mention this in regards to music at all. Therefore… one can listen to music the minute it is Lag BaOmer.
If he doesn’t mention anything about it, how can you just assume it is muttar? He doesn’t mention that it is assur to murder on Lag BaOmer does that make it muttar? It could be that he mentions haircuts and expects us to apply the halacha to the other signs of mourning as well?