======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '105'
                                          'artist'  'The Moving Star Hall Singers'
                                     'text_people'  ''
                                         'release'  ("Been in the Storm so Long: Spirituals, Folk Tales and Children's Games from "
 "John's Island, S. Carolina")
                                           'title'  'Row, Michael, Row'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
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 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['good ol stompin', 'gospel', 'under two minutes']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  '28'
                                            'date'  '1966'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '92.2'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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 '00015482 00000000')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008B8 00000000004721B8 00000000 0013542A 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))                     '92.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '1966'
'TENC' (Encoded by)                                 'iTunes 10.6.3'
'TIT2' (Title/songname/content description)         'Row, Michael, Row'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Moving Star Hall Singers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '20/28'
'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'                                   ['good ol stompin', 'gospel', 'under two minutes']
'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'                        '+1.93 dB'
'TXXX:replaygain_track_peak'                        '0.464787'

========================== row from database ==========================
                                              'id'  1366641
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/1963 - the moving star hall singers - (negro spiritual)/20. the moving star hall singers - row, michael, row.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  105
                                           'genre'  prerock-jb-blues
                                        'filesize'  1271606
                                           'mtime'  1620402191
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 1963 moving star hall singers (negro spiritual) 20. moving star hall singers row, michael, row prerock jb blues
                                      'tag_artist'  The Moving Star Hall Singers
                                     'tag_release'  Been in the Storm so Long: Spirituals, Folk Tales and Children's Games from John's Island, S. Carolina
                                       'tag_title'  Row, Michael, Row
                                             'bpm'  92.2
                                    'search_title'  'michael':3,4 'row':1,2
                                   'search_artist'  'hall':4 'moving':2 'singers':5 'star':3 'the':1
                                  '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 '20':14,15 'blues':22 'country':4 'exotica':2 'hall':8 'jazz':1 'jb':21 'michael':18,19 'moving':6 'negro':10,11 'oldies':3 'prerock':20 'row':16,17 'singers':9 'spiritual':12,13 'star':7
                                    'search_combo'  '1963':39 '20':48,49 'and':21C 'been':10C 'blues':56 'carolina':34C 'children':22C 'childrens':24C 'country':38 'exotica':36 'folk':19C 'from':26C 'games':25C 'hall':8B,42 'in':11C 'island':30C,31C 'jazz':35 'jb':55 'john':27C 'johns':29C 'long':15C,16C 'michael':3A,4A,52,53 'moving':6B,40 'negro':44,45 'oldies':37 'prerock':54 'row':1A,2A,50,51 's':23C,28C,32C,33C 'singers':9B,43 'so':14C 'spiritual':46,47 'spirituals':17C,18C 'star':7B,41 'storm':13C 'tales':20C 'the':5B,12C
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  6A
                                           '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'  ['good ol stompin', 'gospel', 'under two minutes']
                                        'tag_date'  1966
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620402191.4850266  (2021-05-07 17:43:11)
                             'size'  1271606