======================== unified (from filesystem) ========================
                                         'bitrate'  '190.756'
                                        'duration'  '134'
                                          'artist'  'Calexico'
                                     'text_people'  'Burns, Convertino et al'
                                         'release'  'Travelall'
                                           'title'  'Lunada Lando'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'indie', 'fip', 'polyaztone']"
                                     'discogstags'  "['rock', 'southern rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '9'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted;rock-pop-indie'
                                             'bpm'  '84.809'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Travelall'
'TBPM' (BPM (beats per minute))                     '84.809'
'TCOM' (Composer)                                   'Burns, Convertino et al'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-indie-unsorted', 'rock-pop-indie']
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Lunada Lando'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Calexico'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '7/9'
'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', 'southern rock']
'TXXX:iTunes_CDDB_IDs'                              '9+8B0F702FE75CD6536EE3EAA50CFDBDB4+768192'
'TXXX:lastfmtags'                                   ['instrumental', 'indie', 'fip', 'polyaztone']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.01 dB'
'TXXX:replaygain_track_peak'                        '0.436348'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1349853
                                            'path'  /data/Music/Bulk/00poprockelectronic/Calexico/Travelall/07 Lunada Lando.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  134
                                           'genre'  ifs-songwriter-indie-unsorted;rock-pop-indie
                                        'filesize'  3211952
                                           'mtime'  1638554325
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 07 ifs songwriter indie unsorted;rock pop indie
                                      'tag_artist'  Calexico
                                     'tag_release'  Travelall
                                       'tag_title'  Lunada Lando
                                             'bpm'  84.809
                                    'search_title'  'lando':2 'lunada':1
                                   'search_artist'  'calexico':1
                                  'search_release'  'travelall':1
                                     'search_rest'  '00poprockelectronic':1 'ifs':2 'indie':4 'pop':9 'rock':6,8 'songwriter':3 'unsorted':5,7
                                    'search_combo'  '00poprockelectronic':5 'calexico':3B 'ifs':6 'indie':8 'lando':2A 'lunada':1A 'pop':13 'rock':10,12 'songwriter':7 'travelall':4C 'unsorted':9,11
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'indie', 'fip', 'polyaztone']
                                        'tag_date'  2001
                                     'discogstags'  ['rock', 'southern rock']

============================== file details ==============================
                                           'mtime'  1638554325.0562577  (2021-12-03 18:58:45)
                             'size'  3211952