======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '267'
                                          'artist'  'Thomas Chalmers'
                                     'text_people'  ''
                                         'release'  'Edison Blue Amberol 28256'
                                           'title'  'Carry Me Back To Old Virginny (+ Chorus)'
                                           '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-3', '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'  "['1900s', 'old time', 'edison records', '1909']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1914'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '135.1'
                                             'key'  '12A'
                                        '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)                     'Edison Blue Amberol 28256'
'TBPM' (BPM (beats per minute))                     '135.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1914-02-03'
'TIT2' (Title/songname/content description)         'Carry Me Back To Old Virginny (+ Chorus)'
'TKEY' (Initial key)                                '12A'
'TLEN' (Length)                                     '267000'
'TPE1' (Lead performer(s)/Soloist(s))               'Thomas Chalmers'
'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'                                   ['1900s', 'old time', 'edison records', '1909']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'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'                        '+0.57 dB'
'TXXX:replaygain_track_peak'                        '0.426628'

========================== row from database ==========================
                                              'id'  1463448
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1917/Thomas Chalmers - Carry Me Back To Old Virginny (+ Chorus) 3-2-1914.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  267
                                           'genre'  prerock-vocal
                                        'filesize'  5432568
                                           'mtime'  1620666275
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1917 3 1914 prerock vocal
                                      'tag_artist'  Thomas Chalmers
                                     'tag_release'  Edison Blue Amberol 28256
                                       'tag_title'  Carry Me Back To Old Virginny (+ Chorus)
                                             'bpm'  135.1
                                    'search_title'  'back':3 'carry':1 'chorus':7,8 'me':2 'old':5 'to':4 'virginny':6
                                   'search_artist'  'chalmers':2 'thomas':1
                                  'search_release'  '28256':4 'amberol':3 'blue':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1914':8 '1917':6 '3':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'vocal':10
                                    'search_combo'  '00oldiepop':19 '1914':22 '1917':20 '28256':14C '3':21 'amberol':13C 'back':3A 'blue':12C 'carry':1A 'chalmers':10B 'chorus':7A,8A 'country':18 'edison':11C 'exotica':16 'jazz':15 'me':2A 'old':5A 'oldies':17 'prerock':23 'thomas':9B 'to':4A 'virginny':6A 'vocal':24
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  12A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['1900s', 'old time', 'edison records', '1909']
                                        'tag_date'  1914
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666274.8921494  (2021-05-10 19:04:34)
                             'size'  5432568