======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '81'
                                          'artist'  'Mary Pinckney and Janie Hunter'
                                     'text_people'  ''
                                         'release'  ("Been in the Storm so Long: Spirituals, Folk Tales and Children's Games from "
 "John's Island, S. Carolina")
                                           'title'  'Improvised Blues'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', "
 "'q-grit-2', 'q-play-2', 'Q-JZFKS-3', 'Q-OLDST-1', 'q-chart-1', 'q-drums-1', "
 "'q-other-1', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['traditionals', 'traditional blues']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '27'
                                      'tracktotal'  '28'
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '134.3'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

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 '0000980A 00000000')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A14 000000000036EFDC 00000000 000EEC68 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     ("Been in the Storm so Long: Spirituals, Folk Tales and Children's Games from "
 "John's Island, S. Carolina")
'TBPM' (BPM (beats per minute))                     '134.3'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-blues', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1966'
'TENC' (Encoded by)                                 'iTunes 10.6.3'
'TIT2' (Title/songname/content description)         'Improvised Blues'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mary Pinckney and Janie Hunter'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '27/28'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['traditionals', 'traditional blues']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.97 dB'
'TXXX:replaygain_track_peak'                        '0.496850'

========================== row from database ==========================
                                              'id'  1365530
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/1963 - the moving star hall singers - (negro spiritual)/27. mary pinckney and janie hunter - improvised blues.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  81
                                           'genre'  prerock-jb-blues;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  982901
                                           'mtime'  1620346024
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1963 moving star hall singers (negro spiritual) 27. mary pinckney janie hunter improvised blues prerock jb blues;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Mary Pinckney and Janie Hunter
                                     'tag_release'  Been in the Storm so Long: Spirituals, Folk Tales and Children's Games from John's Island, S. Carolina
                                       'tag_title'  Improvised Blues
                                             'bpm'  134.3
                                    'search_title'  'blues':2 'improvised':1
                                   'search_artist'  'and':3 'hunter':5 'janie':4 'mary':1 'pinckney':2
                                  'search_release'  'and':12 'been':1 'carolina':25 'children':13 'childrens':15 'folk':10 'from':17 'games':16 'in':2 'island':21,22 'john':18 'johns':20 'long':6,7 's':14,19,23,24 'so':5 'spirituals':8,9 'storm':4 'tales':11 'the':3
                                     'search_rest'  '1963':5 '27':14,15 'blues':21,24,26 'country':4 'exotica':2 'hall':8 'hunter':19 'improvised':20 'janie':18 'jazz':1 'jb':23 'mary':16 'mor':33 'moving':6 'negro':10,11 'oldies':3 'pinckney':17 'pl':28 'prerock':22 'set':25,27,30,32 'shirleyspinoza':29,31 'singers':9 'spiritual':12,13 'star':7
                                    'search_combo'  '1963':37 '27':46,47 'and':5B,19C 'been':8C 'blues':2A,53,56,58 'carolina':32C 'children':20C 'childrens':22C 'country':36 'exotica':34 'folk':17C 'from':24C 'games':23C 'hall':40 'hunter':7B,51 'improvised':1A,52 'in':9C 'island':28C,29C 'janie':6B,50 'jazz':33 'jb':55 'john':25C 'johns':27C 'long':13C,14C 'mary':3B,48 'mor':65 'moving':38 'negro':42,43 'oldies':35 'pinckney':4B,49 'pl':60 'prerock':54 's':21C,26C,30C,31C 'set':57,59,62,64 'shirleyspinoza':61,63 'singers':41 'so':12C 'spiritual':44,45 'spirituals':15C,16C 'star':39 'storm':11C 'tales':18C 'the':10C
                                    'tag_tracknum'  27
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['traditionals', 'traditional blues']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620346024.3655255  (2021-05-07 02:07:04)
                             'size'  982901