======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '162'
                                          'artist'  'Bob Roberts'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  "I Don't Know Where I'm Goin' But I'm On My Way"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', '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-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['1309fh', 'all', '1308fh', 'english folk', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1906'
                                        'comments'  ''
                                           'genre'  'prerock-folk'
                                             'bpm'  '129.2'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '129.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-folk'
'TDRC' (Recording time)                             '1906'
'TIT2' (Title/songname/content description)         "I Don't Know Where I'm Goin' But I'm On My Way"
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '162000'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Roberts'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['1309fh', 'all', '1308fh', 'english folk', 'folk']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'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'                        '+2.25 dB'
'TXXX:replaygain_track_peak'                        '0.477850'

========================== row from database ==========================
                                              'id'  1508316
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1906/Bob Roberts - I Don_t Know Where I_m Goin_ But I_m On My Way 1906.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  162
                                           'genre'  prerock-folk
                                        'filesize'  3314899
                                           'mtime'  1621705393
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1906 Don_t I_m Goin_ I_m 1906 prerock folk
                                      'tag_artist'  Bob Roberts
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  I Don't Know Where I'm Goin' But I'm On My Way
                                             'bpm'  129.2
                                    'search_title'  'but':12 'don':2 'dont':4 'goin':10,11 'i':1,7 'im':9 'know':5 'm':8 'my':14 'on':13 't':3 'way':15 'where':6
                                   'search_artist'  'bob':1 'roberts':2
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1906':6 'country':4 'don':7 'exotica':2 'folk':13 'goin':11 'i':9 'jazz':1 'm':10 'oldies':3 'prerock':12 't':8
                                    'search_combo'  '00oldiepop':27 '1906':28 'album':19C 'bob':16B 'but':12A 'country':26 'don':2A,29 'dont':4A 'exotica':24 'folk':35 'goin':10A,11A,33 'i':1A,7A,31 'im':9A 'jazz':23 'know':5A 'm':8A,32 'my':14A 'non':18C 'nonalbum':20C 'oldies':25 'on':13A 'prerock':34 'roberts':17B 't':3A,30 'tracks':21C,22C 'way':15A 'where':6A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', '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-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['1309fh', 'all', '1308fh', 'english folk', 'folk']
                                        'tag_date'  1906
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705393.1259882  (2021-05-22 19:43:13)
                             'size'  3314899