======================== unified (from filesystem) ========================
                                         'bitrate'  '191.98'
                                        'duration'  '254'
                                          'artist'  'Haddaway'
                                     'text_people'  ''
                                         'release'  'The Album'
                                           'title'  'Life'
                                           'quals'  ("['Q-SYN-3', 'Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', 'eurodance', 'electronic', 'pop', '90s']"
                                     'discogstags'  "['electronic', 'pop', 'europop', 'eurodance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-th-ent-eurodance'
                                             'bpm'  '128.577'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Album'
'TBPM' (BPM (beats per minute))                     '128.577'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-ent-eurodance'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Life'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Haddaway'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'pop', 'europop', 'eurodance']
'TXXX:lastfmtags'                                   ['dance', 'eurodance', 'electronic', 'pop', '90s']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+4.79 dB'
'TXXX:replaygain_track_peak'                        '0.315469'

========================== row from database ==========================
                                              'id'  1491785
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00dutch/Haddaway - Life.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  254
                                           'genre'  electronic-th-ent-eurodance
                                        'filesize'  6114101
                                           'mtime'  1639511335
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00dutch electronic th ent eurodance
                                      'tag_artist'  Haddaway
                                     'tag_release'  The Album
                                       'tag_title'  Life
                                             'bpm'  128.577
                                    'search_title'  'life':1
                                   'search_artist'  'haddaway':1
                                  'search_release'  'album':2 'the':1
                                     'search_rest'  '00dutch':4 '00mid':1 'electronic':5 'ent':7 'eurodance':8 'europe':3 'north':2 'th':6
                                    'search_combo'  '00dutch':8 '00mid':5 'album':4C 'electronic':9 'ent':11 'eurodance':12 'europe':7 'haddaway':2B 'life':1A 'north':6 'th':10 'the':3C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'Q-SYN-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'eurodance', 'electronic', 'pop', '90s']
                                        'tag_date'  1995
                                     'discogstags'  ['electronic', 'pop', 'europop', 'eurodance']

============================== file details ==============================
                                           'mtime'  1639511335.4789224  (2021-12-14 20:48:55)
                             'size'  6114101