======================== unified (from filesystem) ========================
                                         'bitrate'  '170.961'
                                        'duration'  '226'
                                          'artist'  'Balmorhea'
                                     'text_people'  ''
                                         'release'  'Rivers Arms'
                                           'title'  'Baleen Morning'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'Q-PLAY-3', 'q-syn-3', 'q-bass-1', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['instrumental', 'acoustic', 'piano', 'post rock', 'ambient']"
                                     'discogstags'  ("['rock', 'classical', 'folk, world, & country', 'country', 'neo-classical', "
 "'post rock']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '84.035'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'PRIV:http://www.cdtag.com:\x02\x00ª!ó\x00'         PRIV(owner='http://www.cdtag.com', data=b'\x02\x00\xaa!\xf3\x00')
'TALB' (Album/Movie/Show title)                     'Rivers Arms'
'TBPM' (BPM (beats per minute))                     '84.035'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TDRC' (Recording time)                             '2008-02-12'
'TIT2' (Title/songname/content description)         'Baleen Morning'
'TKEY' (Initial key)                                '8B'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Balmorhea'
'TPUB' (Publisher)                                  'Western Vinyl'
'TRCK' (Track number/Position in set)               '6'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.97'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:Release type'                                 'Normal release'
'TXXX:Rip date'                                     '2008-02-14'
'TXXX:Ripping tool'                                 'EAC'
'TXXX:Source'                                       'CD'
'TXXX:discogstags'                                  ['rock',
 'classical',
 'folk, world, & country',
 'country',
 'neo-classical',
 'post rock']
'TXXX:lastfmtags'                                   ['instrumental', 'acoustic', 'piano', 'post rock', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.34 dB'
'TXXX:replaygain_track_peak'                        '0.507413'

========================== row from database ==========================
                                              'id'  1352913
                                            'path'  /data/Music/Bulk/00poprockelectronic/00ambient/Balmorhea/Rivers Arms/06-balmorhea-baleen_morning.mp3
                                         'working'  None
                                         'bitrate'  171
                                    'duration_sec'  226
                                           'genre'  electronic-ambient
                                        'filesize'  4854872
                                           'mtime'  1636910530
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00ambient 06 balmorhea baleen_morning electronic ambient
                                      'tag_artist'  Balmorhea
                                     'tag_release'  Rivers Arms
                                       'tag_title'  Baleen Morning
                                             'bpm'  84.035
                                    'search_title'  'baleen':1 'morning':2
                                   'search_artist'  'balmorhea':1
                                  'search_release'  'arms':2 'rivers':1
                                     'search_rest'  '00ambient':2 '00poprockelectronic':1 'ambient':7 'baleen':4 'balmorhea':3 'electronic':6 'morning':5
                                    'search_combo'  '00ambient':7 '00poprockelectronic':6 'ambient':12 'arms':5C 'baleen':1A,9 'balmorhea':3B,8 'electronic':11 'morning':2A,10 'rivers':4C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'Q-PLAY-3', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'acoustic', 'piano', 'post rock', 'ambient']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'classical', 'folk, world, & country', 'country', 'neo-classical', 'post rock']

============================== file details ==============================
                                           'mtime'  1636910529.845055  (2021-11-14 18:22:09)
                             'size'  4854872