======================== unified (from filesystem) ========================
                                         'bitrate'  '167.211'
                                        'duration'  '141'
                                          'artist'  'Dorothy Ashby Trio'
                                     'text_people'  ''
                                         'release'  'Office Naps Youtube Channel'
                                           'title'  'That Mellow Thang '
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['jazz', 'cool jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '105.1'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Office Naps Youtube Channel'
'TBPM' (BPM (beats per minute))                     '105.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'That Mellow Thang '
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dorothy Ashby Trio'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'cool jazz']
'TXXX:other'                                        '92kbit_AAC)'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.74 dB'
'TXXX:replaygain_track_peak'                        '0.515840'

========================== row from database ==========================
                                              'id'  1120141
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Office Naps Youtube Channel (Ripped 05 09 16)/Dorothy Ashby Trio_ _That Mellow Thang_ (192kbit_AAC).mp3
                                         'working'  None
                                         'bitrate'  167
                                    'duration_sec'  141
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  2971493
                                           'mtime'  1620538858
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (Ripped 05 09 16) Trio_ _That Thang_ (192kbit_AAC) prerock jb jazz lounge exotica bossa
                                      'tag_artist'  Dorothy Ashby Trio
                                     'tag_release'  Office Naps Youtube Channel
                                       'tag_title'  That Mellow Thang 
                                             'bpm'  105.1
                                    'search_title'  'mellow':2 'thang':3 'that':1
                                   'search_artist'  'ashby':2 'dorothy':1 'trio':3
                                  'search_release'  'channel':4 'naps':2 'office':1 'youtube':3
                                     'search_rest'  '16':3,4 '192kbit':8,10 'aac':9,11 'bossa':17 'exotica':16 'jazz':14 'jb':13 'lounge':15 'prerock':12 'ripped':1,2 'thang':7 'that':6 'trio':5
                                    'search_combo'  '16':13,14 '192kbit':18,20 'aac':19,21 'ashby':5B 'bossa':27 'channel':10C 'dorothy':4B 'exotica':26 'jazz':24 'jb':23 'lounge':25 'mellow':2A 'naps':8C 'office':7C 'prerock':22 'ripped':11,12 'thang':3A,17 'that':1A,16 'trio':6B,15 'youtube':9C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1960
                                     'discogstags'  ['jazz', 'cool jazz']

============================== file details ==============================
                                           'mtime'  1620538858.0286713  (2021-05-09 07:40:58)
                             'size'  2971493