======================== unified (from filesystem) ========================
                                         'bitrate'  '182.318'
                                        'duration'  '168'
                                          'artist'  'Bo Diddley'
                                     'text_people'  ''
                                         'release'  'The Chess Years 1955 - 1974'
                                           'title'  "I'm a Man"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'blues', 'rhythm and blues', 'soul', 'rock']"
                                     'discogstags'  ("['blues rock', 'electric blues', 'funk', 'soul', 'rock', 'funk / soul', "
 "'blues']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '27'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll;rock-early-blues'
                                             'bpm'  '84'
                                             'key'  '9B'
                                        'acoustid'  '5358a519-2989-424c-9856-0f957c5cd0c9'
rest: ''

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

'APIC:Box Front Side'                               type PictureType.COVER_FRONT (Cover (front)) b'Box Front Side'
                                     
'TALB' (Album/Movie/Show title)                     'The Chess Years 1955 - 1974'
'TBPM' (BPM (beats per minute))                     '84'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-early-rocknroll', 'rock-early-blues']
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         "I'm a Man"
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Bo Diddley'
'TPE2' (Band/orchestra/accompaniment)               'Bo Diddley'
'TPOS' (Part of a set)                              '1/12'
'TPUB' (Publisher)                                  'Charly R&B'
'TRCK' (Track number/Position in set)               '1/27'
'TSO2'                                              'Diddley, Bo'
'TSOP' (Performer sort order)                       'Diddley, Bo'
'TSRC' (ISRC (international standard recording code))  'USMC15547010'
'TSST' (Set subtitle)                               'Hey Bo Diddley'
'TXXX:Acoustid Id'                                  '5358a519-2989-424c-9856-0f957c5cd0c9'
'TXXX:Artists'                                      'Bo Diddley'
'TXXX:CATALOGNUMBER'                                'CD Red Box 8'
'TXXX:Mp3gain_minmax'                               '000,193'
'TXXX:Mp3gain_undo'                                 '-001,-001,N'
'TXXX:MusicBrainz Album Artist Id'                  'bf659d74-0b61-488c-8a7d-594f43bed9e0'
'TXXX:MusicBrainz Album Id'                         'b3cceeac-39d7-44a6-bd16-2a50d698fc7c'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        'bf659d74-0b61-488c-8a7d-594f43bed9e0'
'TXXX:MusicBrainz Release Group Id'                 '2b747e89-156a-4f0a-b872-f410f1051245'
'TXXX:MusicBrainz Release Track Id'                 '3f01b612-354f-44ed-94b0-751314874921'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['blues rock', 'electric blues', 'funk', 'soul', 'rock', 'funk / soul', 'blues']
'TXXX:lastfmtags'                                   ['rock and roll', 'blues', 'rhythm and blues', 'soul', 'rock']
'TXXX:originalyear'                                 '1993'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.74 dB'
'TXXX:replaygain_track_peak'                        '0.732832'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'63d5e956-483a-4fc1-8b95-d18d63998351')

========================== row from database ==========================
                                              'id'  1496715
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Diddley, Bo/Bo Diddley (re-issue)/Bo Diddley - I_m A Man.mp3
                                         'working'  None
                                         'bitrate'  182
                                    'duration_sec'  168
                                           'genre'  rock-pop-early-rocknroll;rock-early-blues
                                        'filesize'  3867561
                                           'mtime'  1622659486
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Diddley, (re issue) I_m A rock pop early rocknroll;rock early blues
                                      'tag_artist'  Bo Diddley
                                     'tag_release'  The Chess Years 1955 - 1974
                                       'tag_title'  I'm a Man
                                             'bpm'  84.0
                                    'search_title'  'a':4 'i':1 'im':3 'm':2 'man':5
                                   'search_artist'  'bo':1 'diddley':2
                                  'search_release'  '1955':4 '1974':5 'chess':2 'the':1 'years':3
                                     'search_rest'  'a':13 'blues':21 'country':4 'diddley':5,6 'early':16 'exotica':2 'i':11 'issue':9,10 'jazz':1 'm':12 'oldies':3 'pop':15 're':7,8 'rock':14,18,20 'rocknroll':17,19
                                    'search_combo'  '1955':11C '1974':12C 'a':4A,25 'blues':33 'bo':6B 'chess':9C 'country':16 'diddley':7B,17,18 'early':28 'exotica':14 'i':1A,23 'im':3A 'issue':21,22 'jazz':13 'm':2A,24 'man':5A 'oldies':15 'pop':27 're':19,20 'rock':26,30,32 'rocknroll':29,31 'the':8C 'years':10C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'blues', 'rhythm and blues', 'soul', 'rock']
                                        'tag_date'  1993
                                     'discogstags'  ['blues rock', 'electric blues', 'funk', 'soul', 'rock', 'funk / soul', 'blues']

============================== file details ==============================
                                           'mtime'  1622659485.517777  (2021-06-02 20:44:45)
                             'size'  3867561