======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '106'
                                          'artist'  'Mills Brothers'
                                     'text_people'  ''
                                         'release'  'Shirley & Spinoza'
                                           'title'  'Tiger Rag'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'the', 'of', 'and', 'vocal jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1931'
                                        'comments'  ''
                                           'genre'  'set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '101.819'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Shirley & Spinoza'
'TBPM' (BPM (beats per minute))                     '101.819'
'TCON' (Content type, a.k.a. Genre)                 ['set-pl-shirleyspinoza', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '1931'
'TIT2' (Title/songname/content description)         'Tiger Rag'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mills Brothers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              'sound changed and copyright for public Domain. not for resale.'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'the', 'of', 'and', 'vocal jazz']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.66 dB'
'TXXX:replaygain_track_peak'                        '0.340954'

========================== row from database ==========================
                                              'id'  949084
                                            'path'  /data/Music/Bulk/sns/MillsBrothers-TigerRag1931.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  106
                                           'genre'  set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  1367745
                                           'mtime'  1642095608
                                   'redo_metaread'  0
                                        'rest_str'   sns MillsBrothers TigerRag1931 set pl shirleyspinoza;set pl mor
                                      'tag_artist'  Mills Brothers
                                     'tag_release'  Shirley & Spinoza
                                       'tag_title'  Tiger Rag
                                             'bpm'  101.819
                                    'search_title'  'rag':2 'tiger':1
                                   'search_artist'  'brothers':2 'mills':1
                                  'search_release'  'shirley':1 'spinoza':2
                                     'search_rest'  'brothers':12 'mills':11 'millsbrothers':2 'mor':10 'pl':5 'rag1931':14 'set':4,7,9 'shirleyspinoza':6,8 'sns':1 'tiger':13 'tigerrag1931':3
                                    'search_combo'  'brothers':4B,18 'mills':3B,17 'millsbrothers':8 'mor':16 'pl':11 'rag':2A 'rag1931':20 'set':10,13,15 'shirley':5C 'shirleyspinoza':12,14 'sns':7 'spinoza':6C 'tiger':1A,19 'tigerrag1931':9
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['jazz', 'the', 'of', 'and', 'vocal jazz']
                                        'tag_date'  1931
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642095607.513946  (2022-01-13 18:40:07)
                             'size'  1367745