======================== unified (from filesystem) ========================
                                         'bitrate'  '200.801'
                                        'duration'  '210'
                                          'artist'  'the last army'
                                     'text_people'  ''
                                         'release'  'dead'
                                           'title'  'a day like any other'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', "
 "'q-other-3', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['indie rock', 'rock', 'french', 'female vocalist', 'indietronica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '115.326'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'dead'
'TBPM' (BPM (beats per minute))                     '115.326'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'a day like any other'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'the last army'
'TRCK' (Track number/Position in set)               '2'
'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:lastfmtags'                                   ['indie rock', 'rock', 'french', 'female vocalist', 'indietronica']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.85 dB'
'TXXX:replaygain_track_peak'                        '0.584174'

========================== row from database ==========================
                                              'id'  1285012
                                            'path'  /data/Music/Bulk/00poprockelectronic/B-Sides/0404 Last Army - A Day Like Any Other (B).mp3
                                         'working'  None
                                         'bitrate'  200
                                    'duration_sec'  210
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  5293765
                                           'mtime'  1637330366
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic B Sides 0404 Last Army A Day Like Any Other (B) ifs songwriter indie rock
                                      'tag_artist'  the last army
                                     'tag_release'  dead
                                       'tag_title'  a day like any other
                                             'bpm'  115.326
                                    'search_title'  'a':1 'any':4 'day':2 'like':3 'other':5
                                   'search_artist'  'army':3 'last':2 'the':1
                                  'search_release'  'dead':1
                                     'search_rest'  '00poprockelectronic':1 '0404':4 'a':7 'any':10 'army':6 'b':2,12 'day':8 'ifs':13 'indie':15 'last':5 'like':9 'other':11 'rock':16 'sides':3 'songwriter':14
                                    'search_combo'  '00poprockelectronic':10 '0404':13 'a':1A,16 'any':4A,19 'army':8B,15 'b':11,21 'day':2A,17 'dead':9C 'ifs':22 'indie':24 'last':7B,14 'like':3A,18 'other':5A,20 'rock':25 'sides':12 'songwriter':23 'the':6B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie rock', 'rock', 'french', 'female vocalist', 'indietronica']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330366.367064  (2021-11-19 14:59:26)
                             'size'  5293765