======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '210'
                                          'artist'  'Gregory Isaacs'
                                     'text_people'  'Gregory Isaacs'
                                         'release'  'This Is Reggae Music: The Golden Era 1960 to 1975'
                                           'title'  "Don't Let Me Suffer"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-2', 'Q-HHRNBTT-2', 'Q-OLDST-2', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['reggae', 'roots reggae', 'dub', 'roots', 'jamaica']"
                                     'discogstags'  "['reggae']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '22'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
                                             'bpm'  '138'
                                             'key'  '11B'
                                        'acoustid'  '70ac16de-d61e-4c8f-92ba-9f38e227057a'
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'This Is Reggae Music: The Golden Era 1960 to 1975'
'TBPM' (BPM (beats per minute))                     '138'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Gregory Isaacs'
'TCON' (Content type, a.k.a. Genre)                 'loc-style-reggae or dub or ska or dancehall-dub-roots and reggae'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         "Don't Let Me Suffer"
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '211120'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Gregory Isaacs'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/4'
'TPUB' (Publisher)                                  'Trojan Records/Sanctuary Records'
'TRCK' (Track number/Position in set)               '16/22'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Isaacs, Gregory'
'TSRC' (ISRC (international standard recording code))  'GBAJE6900244'
'TSST' (Set subtitle)                               'Do the Reggay: Rocksteady to Reggae, 1968-1970'
'TXXX:ASIN'                                         'B00064LOV4'
'TXXX:Acoustid Id'                                  '70ac16de-d61e-4c8f-92ba-9f38e227057a'
'TXXX:Artists'                                      'Gregory Isaacs'
'TXXX:BARCODE'                                      '060768047020'
'TXXX:CATALOGNUMBER'                                '06076-80470-2'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '54445a86-3543-4d79-bebe-d586bf68b64c'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '9abff216-e204-4dbc-9849-d1dbe1fbbda8'
'TXXX:MusicBrainz Release Group Id'                 '77fc4c29-50ca-3155-93db-a776de5b85f7'
'TXXX:MusicBrainz Release Track Id'                 '359ed2e0-b0e8-3f54-84d7-81cec717bd0b'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'reggae'
'TXXX:lastfmtags'                                   ['reggae', 'roots reggae', 'dub', 'roots', 'jamaica']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.64 dB'
'TXXX:replaygain_track_peak'                        '0.428649'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e745a5ee-1798-4517-af9d-baade517615b')

========================== row from database ==========================
                                              'id'  1515096
                                            'path'  /data/Music/Bulk/00localcharacter/00reggae-dub/This Is Reggae Music- The Golden Era 1960-1975 Disc 2/16 Gregory Isaacs_This Is Reggae Music- The Golden Era 1960-1975 Disc 2_16_Don_t Let Me Suffer.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  210
                                           'genre'  loc-style-reggae or dub or ska or dancehall-dub-roots and reggae
                                        'filesize'  8441172
                                           'mtime'  1620522532
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00reggae dub Disc 2 16 Isaacs_This Disc 2_16_Don_t loc style reggae dub ska dancehall dub roots and reggae
                                      'tag_artist'  Gregory Isaacs
                                     'tag_release'  This Is Reggae Music: The Golden Era 1960 to 1975
                                       'tag_title'  Don't Let Me Suffer
                                             'bpm'  138.0
                                    'search_title'  'don':1 'dont':3 'let':4 'me':5 'suffer':6 't':2
                                   'search_artist'  'gregory':1 'isaacs':2
                                  'search_release'  '1960':9 '1975':11 'era':8 'golden':7 'is':2 'music':4,5 'reggae':3 'the':6 'this':1 'to':10
                                     'search_rest'  '00reggae':1 '16':8 '2':4,7 'and':17 'dancehall':15 'disc':3 'don':9 'dub':2 'isaacs':5 'loc':11 'reggae':13 'roots':16 'ska':14 'style':12 't':10 'this':6
                                    'search_combo'  '00reggae':20 '16':27 '1960':17C '1975':19C '2':23,26 'and':36 'dancehall':34 'disc':22 'don':1A,28 'dont':3A 'dub':21 'era':16C 'golden':15C 'gregory':7B 'is':10C 'isaacs':8B,24 'let':4A 'loc':30 'me':5A 'music':12C,13C 'reggae':11C,32 'roots':35 'ska':33 'style':31 'suffer':6A 't':2A,29 'the':14C 'this':9C,25 'to':18C
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['reggae', 'roots reggae', 'dub', 'roots', 'jamaica']
                                        'tag_date'  1970
                                     'discogstags'  ['reggae']

============================== file details ==============================
                                           'mtime'  1620522531.567024  (2021-05-09 03:08:51)
                             'size'  8441172