======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '175'
                                          'artist'  "Teddy Kline's Orchester"
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I'm Doing What I'm Doing For Love (vocal - Two Jazzers) -8-1929"
                                           '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-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1929'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '91.6'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '91.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1929'
'TIT2' (Title/songname/content description)         "I'm Doing What I'm Doing For Love (vocal - Two Jazzers) -8-1929"
'TKEY' (Initial key)                                '1A'
'TLEN' (Length)                                     '175000'
'TPE1' (Lead performer(s)/Soloist(s))               "Teddy Kline's Orchester"
'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: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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.27 dB'
'TXXX:replaygain_track_peak'                        '0.548922'

========================== row from database ==========================
                                              'id'  1519796
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1929/Teddy Kline_s Orchester - I_m Doing What I_m Doing For Love (vocal - Two Jazzers) -8-1929.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  175
                                           'genre'  prerock-unsorted
                                        'filesize'  3566600
                                           'mtime'  1621697937
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop Kline_s I_m I_m prerock unsorted
                                      'tag_artist'  Teddy Kline's Orchester
                                     'tag_release'  None
                                       'tag_title'  I'm Doing What I'm Doing For Love (vocal - Two Jazzers) -8-1929
                                             'bpm'  91.6
                                    'search_title'  '1929':14 '8':13 '81929':15 'doing':4 'for':6 'i':1 'im':3 'jazzers':11,12 'love':7 'm':2 'two':10 'vocal':8,9 'what':5
                                   'search_artist'  'kline':2 'klines':4 'orchester':5 's':3 'teddy':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'i':8 'jazz':1 'kline':6 'm':9 'oldies':3 'prerock':10 's':7 'unsorted':11
                                    'search_combo'  '00oldiepop':25 '1929':14A '8':13A '81929':15A 'country':24 'doing':4A 'exotica':22 'for':6A 'i':1A,28 'im':3A 'jazz':21 'jazzers':11A,12A 'kline':17B,26 'klines':19B 'love':7A 'm':2A,29 'oldies':23 'orchester':20B 'prerock':30 's':18B,27 'teddy':16B 'two':10A 'unsorted':31 'vocal':8A,9A 'what':5A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           '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-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1929
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697936.887567  (2021-05-22 17:38:56)
                             'size'  3566600