Critic Nick Quah suggests the streaming giant’s foray into the audio podcast subject has been pleasantly experimental, with casual, powerful exhibits that audio lo-fi and personal. TERRY GROSS, HOST: This is New AIR. You can find unquestionably no scarcity of podcasts about new music, but podcast critic Nick Quah says he discovered a couple of informal still persuasive demonstrates in perhaps an unlikely location. NICK QUAH: Tunes podcasts have a tricky record, largely for copyright explanations. Guaranteed, the cliche stays accurate that any one can theoretically make a podcast. But few can make types about music that really use the new music in question with out probably drawing the ire…