======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '131'
                                          'artist'  'Neko Case'
                                     'text_people'  ''
                                         'release'  'The Tigers Have Spoken'
                                           'title'  'Blacklisted'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'female vocalists', 'alt country', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk rock', 'country rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '119.829'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Tigers Have Spoken'
'TBPM' (BPM (beats per minute))                     '119.829'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Blacklisted'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Neko Case'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock', 'country rock']
'TXXX:lastfmtags'                                   ['indie', 'female vocalists', 'alt country', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.55 dB'
'TXXX:replaygain_track_peak'                        '0.355044'

========================== row from database ==========================
                                              'id'  179158
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Neko Case/06 Blacklisted.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  131
                                           'genre'  ifs-songwriter
                                        'filesize'  3167753
                                           'mtime'  1623435809
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 06 ifs songwriter
                                      'tag_artist'  Neko Case
                                     'tag_release'  The Tigers Have Spoken
                                       'tag_title'  Blacklisted
                                             'bpm'  119.829
                                    'search_title'  'blacklisted':1
                                   'search_artist'  'case':2 'neko':1
                                  'search_release'  'have':3 'spoken':4 'the':1 'tigers':2
                                     'search_rest'  '00singer':1 'eos':3 'ifs':4 'songwriter':2
                                    'search_combo'  '00singer':8 'blacklisted':1A 'case':3B 'eos':10 'have':6C 'ifs':11 'neko':2B 'songwriter':9 'spoken':7C 'the':4C 'tigers':5C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'female vocalists', 'alt country', 'folk', 'singer songwriter']
                                        'tag_date'  2004
                                     'discogstags'  ['rock', 'folk rock', 'country rock']

============================== file details ==============================
                                           'mtime'  1623435808.773429  (2021-06-11 20:23:28)
                             'size'  3167753