======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '181'
                                          'artist'  'eddie lang, Bix Beiderbecke, Frankie Trumbauer'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  "Singin' The Blues Till My Daddy Comes Home 1927"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'Q-PLAY-2', 'q-bass-1', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1927'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '131.926'
                                             'key'  '5A'
                                        '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))                     '131.926'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1927'
'TIT2' (Title/songname/content description)         "Singin' The Blues Till My Daddy Comes Home 1927"
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'eddie lang, Bix Beiderbecke, Frankie Trumbauer'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'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-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.97 dB'
'TXXX:replaygain_track_peak'                        '0.596272'

========================== row from database ==========================
                                              'id'  1512137
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/eddie lang, Bix Beiderbecke, Frankie Trumbauer - Singin_ The Blues Till My Daddy Comes Home 1927.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  181
                                           'genre'  prerock-unsorted
                                        'filesize'  2914304
                                           'mtime'  1621697882
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s Singin_ prerock unsorted
                                      'tag_artist'  eddie lang, Bix Beiderbecke, Frankie Trumbauer
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  Singin' The Blues Till My Daddy Comes Home 1927
                                             'bpm'  131.926
                                    'search_title'  '1927':10 'blues':4 'comes':8 'daddy':7 'home':9 'my':6 'singin':1,2 'the':3 'till':5
                                   'search_artist'  'beiderbecke':5,6 'bix':4 'eddie':1 'frankie':7 'lang':2,3 'trumbauer':8
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'singin':8 'unsorted':10
                                    'search_combo'  '00oldiepop':27 '1920s':28 '1927':10A '1930s':29 '20s':19C '30s':21C 'and':20C 'beiderbecke':15B,16B 'bix':14B 'blues':4A 'comes':8A 'country':26 'daddy':7A 'eddie':11B 'exotica':24 'frankie':17B 'home':9A 'jazz':23 'lang':12B,13B 'my':6A 'oldies':25 'popular':22C 'prerock':31 'singin':1A,2A,30 'the':3A 'till':5A 'trumbauer':18B 'unsorted':32
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-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-PLAY-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1927
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697882.4651551  (2021-05-22 17:38:02)
                             'size'  2914304