$ fq -V '.headers[0].header[]' test.mp3
"ID3"
4
0
{
  "experimental_indicator": false,
  "extended_header": false,
  "unsynchronisation": false,
  "unused": 0
}
35
$ fq -Vr '.headers[0].header[]' test.mp3
ID3
4
0
{
  "experimental_indicator": false,
  "extended_header": false,
  "unsynchronisation": false,
  "unused": 0
}
35
$ fq -o bits_format=base64 -V '.frames[0].audio_data' test.mp3
"AAAAAAA="
$ fq -o bits_format=base64 -Vr '.frames[0].audio_data' test.mp3
AAAAAAA=