======================== unified (from filesystem) ========================
                                         'bitrate'  '158.55'
                                        'duration'  '302'
                                          'artist'  'Preservation Hall Jazz Band'
                                     'text_people'  ''
                                         'release'  'Best of Preservation Hall Jazz Band'
                                           'title'  'His Eye Is on the Sparrow'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['new orleans', 'jazz', 'jazz or blues', 'dixieland', 'jazz band']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '13'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-o-dixiestyle'
                                             'bpm'  '143.112'
                                             'key'  '6B'
                                        'acoustid'  '22ac5e03-94aa-4c1e-acf2-6df6432946b4'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Best of Preservation Hall Jazz Band'
'TBPM' (BPM (beats per minute))                     '143.112'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-o-dixiestyle'
'TDOR' (Original release time)                      '1989'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'His Eye Is on the Sparrow'
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Preservation Hall Jazz Band'
'TPE2' (Band/orchestra/accompaniment)               'Preservation Hall Jazz Band'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'CBS'
'TRCK' (Track number/Position in set)               '4/13'
'TSO2'                                              'Preservation Hall Jazz Band'
'TSOP' (Performer sort order)                       'Preservation Hall Jazz Band'
'TXXX:ASIN'                                         'B0000026QL'
'TXXX:Acoustid Id'                                  '22ac5e03-94aa-4c1e-acf2-6df6432946b4'
'TXXX:BARCODE'                                      '074644499629'
'TXXX:CATALOGNUMBER'                                'MK 44996'
'TXXX:MusicBrainz Album Artist Id'                  '1a9b4e0d-05e2-4491-83f0-a4a676283f99'
'TXXX:MusicBrainz Album Id'                         'e9546d61-7c9c-4e7c-ba82-c40afd3f179d'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '1a9b4e0d-05e2-4491-83f0-a4a676283f99'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['new orleans', 'jazz', 'jazz or blues', 'dixieland', 'jazz band']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.65 dB'
'TXXX:replaygain_track_peak'                        '0.720754'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e5a28034-95e9-467d-a59e-b623838bcb9a')

========================== row from database ==========================
                                              'id'  676184
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Preservation Hall/Preservation Hall Jazz Band@Best of Preservation Hall Jazz Band@1989@04@His Eye Is on the Sparrow.mp3
                                         'working'  None
                                         'bitrate'  158
                                    'duration_sec'  302
                                           'genre'  prerock-jb-jazz-o-dixiestyle
                                        'filesize'  6015010
                                           'mtime'  1620533907
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Band@Best Band@1989@04@His prerock jb jazz dixiestyle
                                      'tag_artist'  Preservation Hall Jazz Band
                                     'tag_release'  Best of Preservation Hall Jazz Band
                                       'tag_title'  His Eye Is on the Sparrow
                                             'bpm'  143.112
                                    'search_title'  'eye':2 'his':1 'is':3 'on':4 'sparrow':6 'the':5
                                   'search_artist'  'band':4 'hall':2 'jazz':3 'preservation':1
                                  'search_release'  'band':6 'best':1 'hall':4 'jazz':5 'of':2 'preservation':3
                                     'search_rest'  '04':9 '1989':8 'band':5,7 'best':6 'country':4 'dixiestyle':13 'exotica':2 'his':10 'jazz':1 'jb':12 'oldies':3 'prerock':11
                                    'search_combo'  '04':25 '1989':24 'band':10B,16C,21,23 'best':11C,22 'country':20 'dixiestyle':29 'exotica':18 'eye':2A 'hall':8B,14C 'his':1A,26 'is':3A 'jazz':9B,15C,17 'jb':28 'of':12C 'oldies':19 'on':4A 'prerock':27 'preservation':7B,13C 'sparrow':6A 'the':5A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['new orleans', 'jazz', 'jazz or blues', 'dixieland', 'jazz band']
                                        'tag_date'  1989
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620533906.9610257  (2021-05-09 06:18:26)
                             'size'  6015010