======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '251'
                                          'artist'  'Barbara Buchholz'
                                     'text_people'  ''
                                         'release'  'Moonstruck'
                                           'title'  'When I M Laid'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-OLDST-3', 'Q-LOCALNESS-2', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['german', 'theremin', 'avantgarde', 'experimental', 'ambient']"
                                     'discogstags'  "['jazz', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental;mi-theremin'
                                             'bpm'  '129.1'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Moonstruck'
'TBPM' (BPM (beats per minute))                     '129.1'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-experimental', 'mi-theremin']
'TCOP' (Copyright message)                          'Make Love Not War'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'When I M Laid'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Barbara Buchholz'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['jazz', 'electronic']
'TXXX:lastfmtags'                                   ['german', 'theremin', 'avantgarde', 'experimental', 'ambient']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.51 dB'
'TXXX:replaygain_track_peak'                        '0.369404'

========================== row from database ==========================
                                              'id'  1380765
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Barbara Buchholz - Moonstruck (2008)/06-when_i_m_laid.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  251
                                           'genre'  ifs-songwriter-experimental;mi-theremin
                                        'filesize'  10072731
                                           'mtime'  1620528021
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos (2008) 06 when_i_m_laid ifs songwriter experimental;mi theremin
                                      'tag_artist'  Barbara Buchholz
                                     'tag_release'  Moonstruck
                                       'tag_title'  When I M Laid
                                             'bpm'  129.1
                                    'search_title'  'i':2 'laid':4 'm':3 'when':1
                                   'search_artist'  'barbara':1 'buchholz':2
                                  'search_release'  'moonstruck':1
                                     'search_rest'  '00singer':1 '2008':4,5 'eos':3 'experimental':11,13 'i':7 'ifs':10 'laid':9 'm':8 'mi':12,14 'songwriter':2 'theremin':15 'when':6
                                    'search_combo'  '00singer':8 '2008':11,12 'barbara':5B 'buchholz':6B 'eos':10 'experimental':18,20 'i':2A,14 'ifs':17 'laid':4A,16 'm':3A,15 'mi':19,21 'moonstruck':7C 'songwriter':9 'theremin':22 'when':1A,13
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['german', 'theremin', 'avantgarde', 'experimental', 'ambient']
                                        'tag_date'  2008
                                     'discogstags'  ['jazz', 'electronic']

============================== file details ==============================
                                           'mtime'  1620528020.8566737  (2021-05-09 04:40:20)
                             'size'  10072731