======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '139'
                                          'artist'  'The Ethics'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "that's the way love goes"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', 'q-syn-2', "
 "'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', "
 "'q-other-2', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['soul', 'philly soul', '7soul', 'techno', 'all']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '143.416'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.416'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TIT2' (Title/songname/content description)         "that's the way love goes"
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Ethics'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['soul', 'philly soul', '7soul', 'techno', 'all']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.18 dB'
'TXXX:replaygain_track_peak'                        '0.563975'

========================== row from database ==========================
                                              'id'  1512679
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/the ethics - that_s the way love goes.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  139
                                           'genre'  electronic-unsorted
                                        'filesize'  2243688
                                           'mtime'  1620573216
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] ethics that_s electronic unsorted
                                      'tag_artist'  The Ethics
                                     'tag_release'  None
                                       'tag_title'  that's the way love goes
                                             'bpm'  143.416
                                    'search_title'  'goes':7 'love':6 's':2 'that':1 'thats':3 'the':4 'way':5
                                   'search_artist'  'ethics':2 'the':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'electronic':10 'ethics':7 'files':5,6 'loose':3,4 's':9 'that':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 'electronic':19 'ethics':9B,16 'files':14,15 'goes':7A 'loose':12,13 'love':6A 's':2A,18 'that':1A,17 'thats':3A 'the':4A,8B 'unsorted':11 'way':5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soul', 'philly soul', '7soul', 'techno', 'all']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620573216.0457785  (2021-05-09 17:13:36)
                             'size'  2243688