======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '235'
                                          'artist'  'John Legend'
                                     'text_people'  ''
                                         'release'  'Once Again'
                                           'title'  'Save Room'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['rnb', 'singer songwriter', 'hip hop', 'soul', 'neo soul']"
                                     'discogstags'  "['electronic', 'funk / soul', 'contemporary r&b', 'neo soul', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '13'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '111.948'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Once Again'
'TBPM' (BPM (beats per minute))                     '111.948'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2006-01-01'
'TENC' (Encoded by)                                 'iTunes 8.0.2.20'
'TIT2' (Title/songname/content description)         'Save Room'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'John Legend'
'TPE2' (Band/orchestra/accompaniment)               'John Legend'
'TRCK' (Track number/Position in set)               '1/13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'funk / soul', 'contemporary r&b', 'neo soul', 'soul']
'TXXX:lastfmtags'                                   ['rnb', 'singer songwriter', 'hip hop', 'soul', 'neo soul']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.30 dB'
'TXXX:replaygain_track_peak'                        '0.411879'

========================== row from database ==========================
                                              'id'  1339927
                                            'path'  /data/Music/Bulk/00poprockelectronic/set/01 Save Room.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  235
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  9431621
                                           'mtime'  1620573835
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic set 01 hip hop or rnb or rap or turntablism
                                      'tag_artist'  John Legend
                                     'tag_release'  Once Again
                                       'tag_title'  Save Room
                                             'bpm'  111.948
                                    'search_title'  'room':2 'save':1
                                   'search_artist'  'john':1 'legend':2
                                  'search_release'  'again':2 'once':1
                                     'search_rest'  '00poprockelectronic':1 'hip':3 'hop':4 'or':5 'rap':7 'rnb':6 'set':2 'turntablism':8
                                    'search_combo'  '00poprockelectronic':7 'again':6C 'hip':9 'hop':10 'john':3B 'legend':4B 'once':5C 'or':11 'rap':13 'rnb':12 'room':2A 'save':1A 'set':8 'turntablism':14
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rnb', 'singer songwriter', 'hip hop', 'soul', 'neo soul']
                                        'tag_date'  2006
                                     'discogstags'  ['electronic', 'funk / soul', 'contemporary r&b', 'neo soul', 'soul']

============================== file details ==============================
                                           'mtime'  1620573834.5732803  (2021-05-09 17:23:54)
                             'size'  9431621