======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '340'
                                          'artist'  'David Slusser'
                                     'text_people'  ''
                                         'release'  'Delight at the End of the Tunnel'
                                           'title'  'Sala'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['free jazz', 'jazz', 'avant garde', 'library', 'composer']"
                                     'discogstags'  "['electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-newer-experimental or free'
                                             'bpm'  '143.7'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Delight at the End of the Tunnel'
'TBPM' (BPM (beats per minute))                     '143.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-newer-experimental or free'
'TCOP' (Copyright message)                          '1997 CD: Tzadik Composer Series Cat. # 7024'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Sala'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'David Slusser'
'TPE2' (Band/orchestra/accompaniment)               'David Slusser'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'experimental']
'TXXX:lastfmtags'                                   ['free jazz', 'jazz', 'avant garde', 'library', 'composer']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.831204'

========================== row from database ==========================
                                              'id'  1379043
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/David Slusser - 1997 - Delight at the End of the Tunnel/02 - Sala.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  340
                                           'genre'  prerock-jb-jazz-newer-experimental or free
                                        'filesize'  8187531
                                           'mtime'  1620528417
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1997 02 prerock jb jazz newer experimental or free
                                      'tag_artist'  David Slusser
                                     'tag_release'  Delight at the End of the Tunnel
                                       'tag_title'  Sala
                                             'bpm'  143.7
                                    'search_title'  'sala':1
                                   'search_artist'  'david':1 'slusser':2
                                  'search_release'  'at':2 'delight':1 'end':4 'of':5 'the':3 'tunnel':6
                                     'search_rest'  '1997':5 'country':4 'exotica':2 'experimental':9 'free':11 'jazz':1 'jb':7 'newer':8 'oldies':3 'or':10 'prerock':6
                                    'search_combo'  '1997':14 'at':5C 'country':13 'david':2B 'delight':4C 'end':7C 'exotica':11 'experimental':18 'free':20 'jazz':10 'jb':16 'newer':17 'of':8C 'oldies':12 'or':19 'prerock':15 'sala':1A 'slusser':3B 'the':6C 'tunnel':9C
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['free jazz', 'jazz', 'avant garde', 'library', 'composer']
                                        'tag_date'  1997
                                     'discogstags'  ['electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1620528417.430597  (2021-05-09 04:46:57)
                             'size'  8187531