======================== unified (from filesystem) ========================
                                         'bitrate'  '318.946'
                                        'duration'  '144'
                                          'artist'  'Guitar Wolf'
                                     'text_people'  ''
                                         'release'  'Mars Twist'
                                           'title'  'Time Travel'
                                           'quals'  ("['Q-OLDST-3', 'Q-LOCALNESS-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HAP-2', "
 "'Q-HHRNBTT-1', 'q-bass-1', 'q-drums-3', 'q-other-3', 'q-piano-1', "
 "'q-vocals-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-3', 'Q-PLAY-2', 'Q-CHART-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['garage punk', 'punk', 'j-rock', 'japanese', 'garage rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-gr-garage;loc-asia-japan'
                                             'bpm'  '145.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Mars Twist'
'TBPM' (BPM (beats per minute))                     '145.1'
'TCON' (Content type, a.k.a. Genre)                 ['rock-gr-garage', 'loc-asia-japan']
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Time Travel'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Guitar Wolf'
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '3'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['garage punk', 'punk', 'j-rock', 'japanese', 'garage rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.724067'

========================== row from database ==========================
                                              'id'  1483575
                                            'path'  /data/Music/Bulk/00localcharacter/Guitar Wolf/Mars Twist (2008)/15 - Time Travel.mp3
                                         'working'  None
                                         'bitrate'  319
                                    'duration_sec'  144
                                           'genre'  rock-gr-garage;loc-asia-japan
                                        'filesize'  5772125
                                           'mtime'  1620385927
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter (2008) 15 rock gr garage;loc asia japan
                                      'tag_artist'  Guitar Wolf
                                     'tag_release'  Mars Twist
                                       'tag_title'  Time Travel
                                             'bpm'  145.1
                                    'search_title'  'time':1 'travel':2
                                   'search_artist'  'guitar':1 'wolf':2
                                  'search_release'  'mars':1 'twist':2
                                     'search_rest'  '2008':1,2 'asia':9 'garage':5,7 'gr':4 'japan':10 'loc':6,8 'rock':3
                                    'search_combo'  '2008':7,8 'asia':15 'garage':11,13 'gr':10 'guitar':3B 'japan':16 'loc':12,14 'mars':5C 'rock':9 'time':1A 'travel':2A 'twist':6C 'wolf':4B
                                    'tag_tracknum'  15
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  ['garage punk', 'punk', 'j-rock', 'japanese', 'garage rock']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620385926.9334984  (2021-05-07 13:12:06)
                             'size'  5772125