No, because the underlying work is still protected.
The 1896 tone poem Also sprach Zarathustra is in the public domain, but certain performances and recordings of it would still be protected.
No; works of Richard Strauss will be protected through 2019.
The song itself is in the public domain, but certain arrangements, performances, and recordings have their own protection.
No; recordings by SICSbeats are protected by copyright.
An extensive list of songs in the public domain (in the US) is linked below. It's much harder to find public domain recordings, as the copyrights for sound recordings are especially convoluted.
Unfortunately, no; prior to 1978, sound recordings were protected by state law rather than federal law. The earliest any sound recordings will enter the public domain is February 15, 2067.
The song itself is in the public domain, but certain settings, performances, and recordings may have their own protection.
The work itself is in the public domain, but certain transcriptions, adaptations, performances, and recordings may still be protected.
The song itself is in the public domain, but certain arrangements, performances, and recordings may still be protected.
The song itself is in the public domain, but certain arrangements, performances, and recordings are still protected by copyright.
The song itself is in the public domain, but certain settings, arrangements, performances, and recordings may have their own protection.
The song itself is in the public domain, but certain settings, performances, and recordings may still be protected.