======================== unified (from filesystem) ========================
                                         'bitrate'  '178.486'
                                        'duration'  '331'
                                          'artist'  'Esbjörn Svensson Trio'
                                     'text_people'  'Esbjörn Svensson Trio'
                                         'release'  'Seven Days Of Falling'
                                           'title'  'Ballad For The Unborn'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'Q-PLAY-2', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['swedish', 'jazz piano', 'jazz', 'contemporary jazz', 'instrumental', "
 "'piano']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '10'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '110.122'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Seven Days Of Falling'
'TBPM' (BPM (beats per minute))                     '110.122'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Esbjörn Svensson Trio'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Ballad For The Unborn'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Esbjörn Svensson Trio'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:iTunes_CDDB_IDs'                              '10+7C3FC6C7BFAC0EC03E88F81DE5E915AD+3235924'
'TXXX:lastfmtags'                                   ['swedish', 'jazz piano', 'jazz', 'contemporary jazz', 'instrumental', 'piano']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.85 dB'
'TXXX:replaygain_track_peak'                        '0.847807'

========================== row from database ==========================
                                              'id'  1111494
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Esbjörn Svensson Trio/Seven days of falling/01 01 - Ballad For The Unborn.mp3
                                         'working'  None
                                         'bitrate'  178
                                    'duration_sec'  331
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  7406496
                                           'mtime'  1620573985
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country days of falling 01 01 prerock jb jazz unsorted
                                      'tag_artist'  Esbjörn Svensson Trio
                                     'tag_release'  Seven Days Of Falling
                                       'tag_title'  Ballad For The Unborn
                                             'bpm'  110.122
                                    'search_title'  'ballad':1 'for':2 'the':3 'unborn':4
                                   'search_artist'  'esbjorn':1,2 'svensson':3 'trio':4
                                  'search_release'  'days':2 'falling':4 'of':3 'seven':1
                                     'search_rest'  'country':4 'days':5 'exotica':2 'falling':7 'jazz':1 'jb':9 'of':6 'oldies':3 'prerock':8 'unsorted':10
                                    'search_combo'  'ballad':1A 'country':16 'days':10C,17 'esbjorn':5B,6B 'exotica':14 'falling':12C,19 'for':2A 'jazz':13 'jb':21 'of':11C,18 'oldies':15 'prerock':20 'seven':9C 'svensson':7B 'the':3A 'trio':8B 'unborn':4A 'unsorted':22
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['swedish', 'jazz piano', 'jazz', 'contemporary jazz', 'instrumental', 'piano']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573985.0754538  (2021-05-09 17:26:25)
                             'size'  7406496