======================== unified (from filesystem) ========================
                                         'bitrate'  '167.537'
                                        'duration'  '237'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Global Meditation (Disc D)'
                                           'title'  'A Cool Wind is Blowing'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-LOCALNESS-3', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '145.580'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Global Meditation (Disc D)'
'TBPM' (BPM (beats per minute))                     '145.580'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '1992'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Secure mode)'
'TIT2' (Title/songname/content description)         'A Cool Wind is Blowing'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.06 dB'
'TXXX:replaygain_track_peak'                        '0.436791'

========================== row from database ==========================
                                              'id'  475851
                                            'path'  /data/Music/Bulk/00localcharacter/VA. World 1： Trad/Global Meditation ~ Music From The Heart ~ Melody (Ellipsis Arts, 1992) [178k VBR]/06 - Djivan Gasparyan - A Cool Wind is Blowing.mp3
                                         'working'  None
                                         'bitrate'  167
                                    'duration_sec'  237
                                           'genre'  loc-unsorted
                                        'filesize'  4980740
                                           'mtime'  1621629873
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA. World 1： Trad ~ Music From The Heart ~ Melody (Ellipsis Arts, 1992) [178k VBR] 06 Djivan Gasparyan loc unsorted
                                      'tag_artist'  [unknown]
                                     'tag_release'  Global Meditation (Disc D)
                                       'tag_title'  A Cool Wind is Blowing
                                             'bpm'  145.58
                                    'search_title'  'a':1 'blowing':5 'cool':2 'is':4 'wind':3
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'd':5,6 'disc':3,4 'global':1 'meditation':2
                                     'search_rest'  '1':4,5,6 '178k':19,20 '1992':17,18 'arts':15,16 'djivan':23 'ellipsis':13,14 'from':9 'gasparyan':24 'heart':11 'loc':25 'melody':12 'music':8 'the':10 'trad':7 'unsorted':26 'va':1,2 'vbr':21,22 'world':3
                                    'search_combo'  '1':17,18,19 '178k':32,33 '1992':30,31 'a':1A 'arts':28,29 'blowing':5A 'cool':2A 'd':12C,13C 'disc':10C,11C 'djivan':36 'ellipsis':26,27 'from':22 'gasparyan':37 'global':8C 'heart':24 'is':4A 'loc':38 'meditation':9C 'melody':25 'music':21 'the':23 'trad':20 'unknown':6B,7B 'unsorted':39 'va':14,15 'vbr':34,35 'wind':3A 'world':16
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1992
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629873.2249825  (2021-05-21 22:44:33)
                             'size'  4980740