======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '157'
                                          'artist'  'Harry McClintock'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  "Hallejujah! I'm a Bum"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'bluegrass', 'folk', 'americana', 'soundtrack']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1926'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '142.407'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '142.407'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1926'
'TIT2' (Title/songname/content description)         "Hallejujah! I'm a Bum"
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '157488'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry McClintock'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['country', 'bluegrass', 'folk', 'americana', 'soundtrack']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.91 dB'
'TXXX:replaygain_track_peak'                        '0.525192'

========================== row from database ==========================
                                              'id'  1509536
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Harry McClintock - Hallelujah! I_m A Bum 1926.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  157
                                           'genre'  prerock-unsorted
                                        'filesize'  2560068
                                           'mtime'  1621697872
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s Hallelujah! I_m A 1926 prerock unsorted
                                      'tag_artist'  Harry McClintock
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  Hallejujah! I'm a Bum
                                             'bpm'  142.407
                                    'search_title'  'a':5 'bum':6 'hallejujah':1 'i':2 'im':4 'm':3
                                   'search_artist'  'clintock':4 'harry':1 'mc':3 'mcclintock':2
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1926':12 '1930s':7 'a':11 'country':4 'exotica':2 'hallelujah':8 'i':9 'jazz':1 'm':10 'oldies':3 'prerock':13 'unsorted':14
                                    'search_combo'  '00oldiepop':19 '1920s':20 '1926':26 '1930s':21 '20s':11C '30s':13C 'a':5A,25 'and':12C 'bum':6A 'clintock':10B 'country':18 'exotica':16 'hallejujah':1A 'hallelujah':22 'harry':7B 'i':2A,23 'im':4A 'jazz':15 'm':3A,24 'mc':9B 'mcclintock':8B 'oldies':17 'popular':14C 'prerock':27 'unsorted':28
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           '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-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['country', 'bluegrass', 'folk', 'americana', 'soundtrack']
                                        'tag_date'  1926
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697871.9243186  (2021-05-22 17:37:51)
                             'size'  2560068