======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '129'
                                          'artist'  'Chet Atkins'
                                     'text_people'  ''
                                         'release'  'Galloping Guitar: The Early Years, 1945-1954'
                                           'title'  'Mountain Melody'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'guitar virtuoso', 'country', 'jazz', 'guitar', 'acoustic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '29'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'prerock-country'
                                             'bpm'  '134'
                                             'key'  '12B'
                                        'acoustid'  '257db8d4-cd93-4fc8-903c-1fa1f5d73768'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Galloping Guitar: The Early Years, 1945-1954'
'TBPM' (BPM (beats per minute))                     '134'
'TCON' (Content type, a.k.a. Genre)                 'prerock-country'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Mountain Melody'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Chet Atkins'
'TPE2' (Band/orchestra/accompaniment)               'Chet Atkins'
'TPOS' (Part of a set)                              '2/4'
'TPUB' (Publisher)                                  'Bear Family Records'
'TRCK' (Track number/Position in set)               '11/29'
'TSO2'                                              'Atkins, Chet'
'TSOP' (Performer sort order)                       'Atkins, Chet'
'TXXX:ASIN'                                         'B000001B18'
'TXXX:Acoustid Id'                                  '257db8d4-cd93-4fc8-903c-1fa1f5d73768'
'TXXX:Artists'                                      'Chet Atkins'
'TXXX:BARCODE'                                      '4000127157140'
'TXXX:CATALOGNUMBER'                                'BCD 15714 DI'
'TXXX:MusicBrainz Album Artist Id'                  '5810667a-9db6-4fd0-abac-667cdac5d415'
'TXXX:MusicBrainz Album Id'                         '5ae8e04f-e679-4fe6-9d95-deddd7c029ec'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '5810667a-9db6-4fd0-abac-667cdac5d415'
'TXXX:MusicBrainz Release Group Id'                 '1b7586d3-6d46-33bb-950e-342e5036afb4'
'TXXX:MusicBrainz Release Track Id'                 'a45b1225-cb0b-33fb-a62d-5285ea4158e5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental', 'guitar virtuoso', 'country', 'jazz', 'guitar', 'acoustic']
'TXXX:originalyear'                                 '1993'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.15 dB'
'TXXX:replaygain_track_peak'                        '0.553965'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'df657623-6bfd-4488-8d5c-d65d0b43f90b')

========================== row from database ==========================
                                              'id'  1427106
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1950/Chet Atkins - Mountain Melody 1950.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  129
                                           'genre'  prerock-country
                                        'filesize'  2643780
                                           'mtime'  1621627685
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1950 1950 prerock country
                                      'tag_artist'  Chet Atkins
                                     'tag_release'  Galloping Guitar: The Early Years, 1945-1954
                                       'tag_title'  Mountain Melody
                                             'bpm'  134.0
                                    'search_title'  'melody':2 'mountain':1
                                   'search_artist'  'atkins':2 'chet':1
                                  'search_release'  '1945':8 '19451954':10 '1954':9 'early':5 'galloping':1 'guitar':2,3 'the':4 'years':6,7
                                     'search_rest'  '00oldiepop':5 '1950':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':19 '1945':12C '19451954':14C '1950':20 '1954':13C 'atkins':4B 'chet':3B 'country':18 'early':9C 'exotica':16 'galloping':5C 'guitar':6C,7C 'jazz':15 'melody':2A 'mountain':1A 'oldies':17 'prerock':21 'the':8C 'years':10C,11C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', '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-1', 'q-other-4', 'Q-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'guitar virtuoso', 'country', 'jazz', 'guitar', 'acoustic']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627685.3711257  (2021-05-21 22:08:05)
                             'size'  2643780