======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '217'
                                          'artist'  'ceres'
                                     'text_people'  ''
                                         'release'  "clubtrance '99"
                                           'title'  'turn me on now'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['emo', 'punk rock', 'trance', 'love', 'indie']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-th-trance'
                                             'bpm'  '137.013'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "clubtrance '99"
'TBPM' (BPM (beats per minute))                     '137.013'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'turn me on now'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'ceres'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '139,195'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:Tracknum'                                     '15'
'TXXX:lastfmtags'                                   ['emo', 'punk rock', 'trance', 'love', 'indie']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.18 dB'
'TXXX:replaygain_track_peak'                        '0.686661'

========================== row from database ==========================
                                              'id'  1525980
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/Clubtrance _99/clubtrance _99 - 15 - ceres - turn me on now.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  217
                                           'genre'  electronic-th-trance
                                        'filesize'  3477821
                                           'mtime'  1621627144
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat Clubtrance _99 _99 15 electronic th
                                      'tag_artist'  ceres
                                     'tag_release'  clubtrance '99
                                       'tag_title'  turn me on now
                                             'bpm'  137.013
                                    'search_title'  'me':2 'now':4 'on':3 'turn':1
                                   'search_artist'  'ceres':1
                                  'search_release'  '99':2,3 'clubtrance':1
                                     'search_rest'  '00poprockelectronic':1 '99':6 'clubtrance':5 'dance':3 'electronic':7 'generic':2 'th':8 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':9 '99':7C,8C,14 'ceres':5B 'clubtrance':6C,13 'dance':11 'electronic':15 'generic':10 'me':2A 'now':4A 'on':3A 'th':16 'trapbeat':12 'turn':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['emo', 'punk rock', 'trance', 'love', 'indie']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627144.0350842  (2021-05-21 21:59:04)
                             'size'  3477821