======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '194'
                                          'artist'  'The Mountain Goats'
                                     'text_people'  ''
                                         'release'  'Babylon Springs EP'
                                           'title'  'Sail Babylon Springs'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'Q-PLAY-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-vocals-1', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']"
                                     'discogstags'  "['rock', 'folk rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '5'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '131.2'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_IDs:eng'                          '5+AD764BBFC74D423C10694D64E77F5287+7098564'
'TALB' (Album/Movie/Show title)                     'Babylon Springs EP'
'TBPM' (BPM (beats per minute))                     '131.2'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'iTunes v6.0.4.2'
'TIT2' (Title/songname/content description)         'Sail Babylon Springs'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mountain Goats'
'TRCK' (Track number/Position in set)               '3/5'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.08 dB'
'TXXX:replaygain_track_peak'                        '0.465025'

========================== row from database ==========================
                                              'id'  1296738
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Mountain Goats/Babylon Springs/03 Sail Babylon Springs.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  194
                                           'genre'  ifs-songwriter
                                        'filesize'  3115170
                                           'mtime'  1628357246
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 03 ifs songwriter
                                      'tag_artist'  The Mountain Goats
                                     'tag_release'  Babylon Springs EP
                                       'tag_title'  Sail Babylon Springs
                                             'bpm'  131.2
                                    'search_title'  'babylon':2 'sail':1 'springs':3
                                   'search_artist'  'goats':3 'mountain':2 'the':1
                                  'search_release'  'babylon':1 'ep':3 'springs':2
                                     'search_rest'  '00poprockelectronic':1 'ifs':2 'songwriter':3
                                    'search_combo'  '00poprockelectronic':10 'babylon':2A,7C 'ep':9C 'goats':6B 'ifs':11 'mountain':5B 'sail':1A 'songwriter':12 'springs':3A,8C 'the':4B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
                                        'tag_date'  2006
                                     'discogstags'  ['rock', 'folk rock']

============================== file details ==============================
                                           'mtime'  1628357245.9595451  (2021-08-07 19:27:25)
                             'size'  3115170